HEADPHONES · YOUR NEXT FACE-OFF

HyperX Cloud Alpha Wireless vs Sennheiser HD 300 PROtect

Real specs. Clear sources.Exact models · UK & US buying links

Compared products

YOUR FIRST CHOICE

HyperX Cloud Alpha Wireless

4P5D4AA · Black-Red · 2.4 GHz wireless

Full product profile Official image

Exact model & source notes

The HyperX Cloud Alpha Wireless (SKU 4P5D4AA, black and red) is a closed-back, over-ear 2.4 GHz wireless gaming headset with 50 mm dual-chamber drivers, an aluminium frame, onboard volume, mic-mute and mic-monitoring controls and a detachable Discord and TeamSpeak-certified noise-cancelling microphone. HyperX NGENUITY software checks battery life and adjusts the equalizer, and HyperX rates the battery at up to 300 hours at 50% volume.

Specifications checked 26 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

WHICH SUITS YOU?

Choose the HyperX Cloud Alpha Wireless for

A wireless connection
Microphone: Yes vs No
Lower stated impedance: 62 ohm vs 64 ohm

Choose the Sennheiser HD 300 PROtect for

A wired connection
Higher stated impedance: 64 ohm vs 62 ohm

Built from verified specifications that differ. Not a rating or a recommendation.

See the 13 verified differences

THE CONTENDER

Sennheiser HD 300 PROtect

506898 · HD 300 PROtect (with ActiveGard) · wired

Full product profile Official image

Exact model & source notes

The HD 300 PROtect (article 506898) is the HD 300 PRO closed-back, around-ear monitoring headphone with Sennheiser's switchable ActiveGard limiter, which limits peaks above 110 dB. It shares the HD 300 PRO's passive attenuation (rated up to 32 dB), 64 Ω impedance, approx. 297 g weight without cable and replaceable pads, headband padding and cable. It is passive, with no microphone or active noise cancellation. Sennheiser lists a two-year warranty.

Specifications checked 27 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

HyperX Cloud Alpha Wireless UK & US retailers

UK & US price history: no verified listing yet

Sennheiser HD 300 PROtect UK & US retailers

UK & US price history: no verified listing yet

Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.

THE DIFFERENCES, MADE VISIBLE

Visual facts

Differences first. Select a topic for its graphic, sources and conditions.

How to read this comparison

Manufacturer facts for the exact models shown. Not a quality rating or a test result.
“Different” means the known values differ, not that one is better.
Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.

FEATURES SIDE BY SIDE7 topics

Yes and No describe the listed feature. Missing evidence stays unverified.

SELECTED TOPIC

01 / 07

Impedance

Nominal electrical load, not sound quality or loudness. Output capability and headphone sensitivity matter together; impedance alone cannot decide whether an amplifier is needed.

HyperX Cloud Alpha Wireless62 Ω

Manufacturer specification · Listed on the UK page; the US page omits impedance.

Source 1

Sennheiser HD 300 PROtect64 Ω

Source 1 Source 2

Explore the full specifications

Start with your listening environment. Open and closed earcups suit different surroundings. A closed back is not the same as active noise cancellation. Check the exact cable and headphone output. We do not turn impedance, driver size or unpaired lab results into a sound-quality score.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

13 verified differences, most decision-relevant first. 2 are also drawn in Visual facts above. Missing information stays separate.

Acoustic design

HyperX Cloud Alpha WirelessClosed-back, dual-chamber driver design

Sennheiser HD 300 PROtectClosed-back

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check the exact configuration and source conditions for your use.

Wired / wireless connections

HyperX Cloud Alpha Wireless2.4 GHz wireless via the supplied USB wireless adapter; USB cable for charging

Sennheiser HD 300 PROtectWired; exchangeable 1.5 m cable with 3.5 mm jack on Sennheiser's system connector, and supplied 6.3 mm (1/4") stereo jack adapter

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification · HyperX lists no Bluetooth and no analogue input; the supplied cable is described as a charge cable.

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications

Sennheiser HD 300 PROtect

Manufacturer specification · The box list names a 1.5 m cable; the specification sheet and quick guide give approx. 1.55 m.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check the exact configuration and source conditions for your use.

Microphone

In Visual facts

HyperX Cloud Alpha WirelessYes

Sennheiser HD 300 PROtectNo

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification · Detachable bi-directional, noise-cancelling microphone with LED status indicator; pop filter supplied.

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications

Sennheiser HD 300 PROtect

Manufacturer specification · Monitoring headphones; no microphone is listed in the specifications or package contents.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check the exact configuration and source conditions for your use.

Battery life

HyperX Cloud Alpha WirelessUp to 300 hours; about 4.5 hours to charge

Sennheiser HD 300 PROtectNot required: passive wired headphones powered by the audio source

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification · HyperX's test condition: 50% headphone volume. The charge time appears on the US page only. Manufacturer footnote [2] describes a fully charged headset plugged via USB to a system, with system and media-player volume at 50%; it does not clearly identify whether that USB wording refers to the headset or its wireless adapter. Retain the rated battery claim, but the exact test connection remains unresolved.

Sennheiser HD 300 PROtect

Manufacturer specification · The product page lists 'Battery included: N'.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data

Manufacturer claims for the stated mode and equipment. Read each test condition; this is not measured everyday battery life.

Impedance

In Visual facts

HyperX Cloud Alpha Wireless62 ohm

Sennheiser HD 300 PROtect64 ohm

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification · Listed on the UK page; the US page omits impedance.

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check the exact configuration and source conditions for your use.

Driver construction

HyperX Cloud Alpha WirelessDynamic, 50 mm with neodymium magnets, dual-chamber

Sennheiser HD 300 PROtectDynamic transducers with precision diaphragms

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications

Sennheiser HD 300 PROtect

Manufacturer specification · Sennheiser does not state the transducer diameter on the pages and documents read.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check whether the diameter describes the complete transducer or only its diaphragm. Different labels and driver sizes do not establish better sound.

Show 7 more verified differences

Wearing style

HyperX Cloud Alpha WirelessOver-ear (circumaural), closed-back wireless gaming headset with aluminium frame

Sennheiser HD 300 PROtectOver-ear (circumaural), closed-back wired monitoring headphones

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check the exact configuration and source conditions for your use.

Rated total harmonic distortion

HyperX Cloud Alpha Wireless≤ 2%

Sennheiser HD 300 PROtect<0.1% at 1 kHz, 94 dB SPL

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)

These published limits can use different input voltages, loudness levels and standards. They cannot establish lower distortion in matched listening conditions.

Ear cushions

HyperX Cloud Alpha WirelessMemory foam with premium leatherette

Sennheiser HD 300 PROtectViscoelastic; replaceable

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check the exact configuration and source conditions for your use.

Rated frequency response

HyperX Cloud Alpha Wireless15 Hz – 21 kHz

Sennheiser HD 300 PROtect6–25,000 Hz

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications

Sennheiser HD 300 PROtect

Manufacturer specification · No level tolerance is stated.

Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)

Range endpoints need their stated threshold. They do not describe response flatness or prove better bass, detail or sound quality.

In the box

HyperX Cloud Alpha WirelessHeadset, USB wireless adapter, USB charge cable, detachable microphone, pop filter, quick start guide

Sennheiser HD 300 PROtectHD 300 PROtect headphones, 1.5 m cable with 3.5 mm jack, 6.3 mm (1/4") stereo jack adapter, quick guide

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data

Check the exact configuration and source conditions for your use.

Rated sensitivity

HyperX Cloud Alpha Wireless103 dB SPL/mW at 1 kHz

Sennheiser HD 300 PROtect108 ±3 dB SPL (1 kHz, 1 Vrms)

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification · dB/mW reference.

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications

Sennheiser HD 300 PROtect

Manufacturer specification · Voltage reference (dB/V), not dB/mW.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Keep the frequency and voltage or power reference attached. Sensitivity describes output for an input, not sound quality; dB/V and dB/mW are different measures.

Weight

HyperX Cloud Alpha Wireless322 g

Sennheiser HD 300 PROtect297 g

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification · HyperX does not state whether the microphone is included. The US page lists 0.7 lb.

Sennheiser HD 300 PROtect

Manufacturer specification · Approximate, without cable, per the specification sheet and quick guide covering both HD 300 PRO and HD 300 PROtect. The product page separately lists 'Product weight (g) 550' without a basis.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)

A size or weight trade-off; it does not establish the better product.

Missing or non-comparable evidence (18)

Active noise cancellation

HyperX Cloud Alpha WirelessNot verified

Sennheiser HD 300 PROtectNo

Sources

HyperX Cloud Alpha Wireless

The reviewed exact sources do not explicitly establish active noise cancellation presence or absence for listening. Preserve separately documented microphone noise reduction, closed construction or passive attenuation; none negates active ANC. · Manufacturer specification

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications

Sennheiser HD 300 PROtect

Manufacturer specification · Attenuation is passive: the page lists 'Noise cancellation (db) Max 32 dB (passive)' and no battery. ActiveGard is a peak limiter, not noise cancellation.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Software controls

HyperX Cloud Alpha WirelessHyperX NGENUITY software: battery-life check, equalizer and further customisation

Sennheiser HD 300 PROtectNot verified

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Cable arrangement

HyperX Cloud Alpha WirelessNot verified

Sennheiser HD 300 PROtectExchangeable cable on Sennheiser's system connector; Sennheiser describes a coiled cable that filters structure-borne noise at the earpiece

Sources

HyperX Cloud Alpha Wireless

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Cable length

HyperX Cloud Alpha WirelessNot verified

Sennheiser HD 300 PROtect1.55 m

Sources

HyperX Cloud Alpha Wireless

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification · Approximate; the box list names the cable as 1.5 m.

Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Contact pressure

HyperX Cloud Alpha WirelessNot verified

Sennheiser HD 300 PROtectApprox. 6 N

Sources

HyperX Cloud Alpha Wireless

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Controls

HyperX Cloud Alpha WirelessOnboard audio controls for volume, mic mute and mic monitoring

Sennheiser HD 300 PROtectNot verified

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Driver size

HyperX Cloud Alpha Wireless50 mm

Sennheiser HD 300 PROtectNot verified

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated power

HyperX Cloud Alpha WirelessNot verified

Sennheiser HD 300 PROtect500 mW

Sources

HyperX Cloud Alpha Wireless

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification · The datasheet labels this 'Power rating'; the product page lists the same figure as 'Power consumption (Amp)'.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Maximum sound pressure level

HyperX Cloud Alpha WirelessNot verified

Sennheiser HD 300 PROtect123 dB SPL at 1 kHz (ActiveGard off); 110 dB SPL at 1 kHz (ActiveGard on)

Sources

HyperX Cloud Alpha Wireless

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Microphone

HyperX Cloud Alpha WirelessDetachable electret condenser, bi-directional, noise-cancelling; −15 dBFS/Pa at 1 kHz

Sennheiser HD 300 PROtectNot verified

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification · HyperX describes the detachable microphone as Discord and TeamSpeak-certified.

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Operating temperature

HyperX Cloud Alpha WirelessNot verified

Sennheiser HD 300 PROtect−15 °C to +55 °C

Sources

HyperX Cloud Alpha Wireless

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification · Relative humidity up to 90%.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Ambient noise attenuation

HyperX Cloud Alpha WirelessNot verified

Sennheiser HD 300 PROtectUp to 32 dB (passive)

Sources

HyperX Cloud Alpha Wireless

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification · Passive attenuation; not active noise cancellation.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Compatibility

HyperX Cloud Alpha WirelessConflicting evidence

Sennheiser HD 300 PROtectNot verified

Sources

HyperX Cloud Alpha Wireless

HyperX's UK and US pages list 'Compatibility: PC' in the specification summary, but the same pages' key-feature list advertises 'Multi-platform compatibility' without naming the platforms. Check the listing for console or mobile support. · Manufacturer specification

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Serviceability

HyperX Cloud Alpha WirelessNot verified

Sennheiser HD 300 PROtectModular: ear pads, headband padding and cable are replaceable

Sources

HyperX Cloud Alpha Wireless

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Hearing protection and comfort

HyperX Cloud Alpha WirelessNot verified

Sennheiser HD 300 PROtectSwitchable ActiveGard limiter that limits peaks above 110 dB; recess for the fontanelle for pressure distribution and wearing comfort

Sources

HyperX Cloud Alpha Wireless

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification · Sennheiser states that the HD 300 PROtect's switchable ActiveGard hearing protection satisfies international directives on industrial safety and noise control.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Spatial audio

HyperX Cloud Alpha WirelessDTS Headphone:X spatial audio

Sennheiser HD 300 PROtectNot verified

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification · HyperX's official US product-page gallery for the Black-Red 4P5D4AA includes an image (03, file hyperx_cloud_alpha_wireless_red_annotated_2_dts_en.jpg) captioned 'DTS® Headphone:X® Spatial Audio', and the UK product page carries a DTS and Headphone:X trademark footnote. Neither page's text describes how it is enabled or on which platforms it works.

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

USB audio

HyperX Cloud Alpha WirelessUSB 2.0, 24-bit

Sennheiser HD 300 PROtectNot verified

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Wireless range

HyperX Cloud Alpha WirelessUp to 20 m

Sennheiser HD 300 PROtectNot verified

Sources

HyperX Cloud Alpha Wireless

Manufacturer specification · HyperX notes range may vary with environmental conditions.

HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

0 shared fields have the same recorded value.

YOUR HEADPHONES. YOUR RULES.

Check against your must-haves

Feature matching for the features you select. It doesn’t rate sound or comfort.

Start with your listening setup.

Choose a starting point, then fine-tune your must-haves.

FINE-TUNE THE DETAILS

Your essentials.

These shortcuts select the features shown above. Check the fit against your own equipment and listening space.

A feature match describes the selected requirements. It doesn’t rate sound or comfort.

Open-back designFor a quiet listening spaceClosed-back designAn enclosed outer earcupDetachable cableUnplug the cable at the headphonesBuilt-in microphoneFor calls and voice chatActive noise cancellationNot the same as a closed back

YOUR CHOICE

HyperX Cloud Alpha Wireless

Select a feature to check your fit.

YOUR CHOICE

Sennheiser HD 300 PROtect

Select a feature to check your fit.

Feature matching, not a sound-quality score. The specification table links to the evidence for each feature.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

HyperX Cloud Alpha Wireless

What it brings

HyperX rates the battery at up to 300 hours (tested at 50% headphone volume), with a full charge taking about 4.5 hours according to the US page.
Manufacturer source Manufacturer source
The detachable microphone has an LED status indicator, and HyperX lists a wireless range of up to 20 m.
Manufacturer source

What to check

The specification summary names PC, while a feature bullet claims multi-platform compatibility without naming platforms. The documented audio connection uses the 2.4 GHz USB adapter; other input support is not explicitly established.
Manufacturer source Manufacturer source
The manufacturer’s “noise-cancelling” description applies to the microphone. The reviewed exact sources do not explicitly establish active noise cancellation for listening.
Manufacturer source Manufacturer source

Sennheiser HD 300 PROtect

What it brings

The switchable ActiveGard limiter caps the maximum level at 110 dB SPL when on (123 dB SPL when off), for live, broadcast and high-SPL work.
Manufacturer source Manufacturer source Manufacturer source
Sennheiser rates up to 32 dB of passive ambient-noise attenuation, and the pads, headband padding and cable are replaceable.
Manufacturer source Manufacturer source

What to check

Sennheiser's product page lists an unexplained 550 g 'product weight', while its specification sheet and quick guide give approx. 297 g without cable.
Manufacturer source Manufacturer source Manufacturer source
There is no microphone, wireless connection or active noise cancellation; the ActiveGard limiter is hearing protection against peaks, not noise cancellation.
Manufacturer source Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

31 of 31 specifications Sources in each row

Source-backed specifications for HyperX Cloud Alpha Wireless and Sennheiser HD 300 PROtect
Specification	HyperX Cloud Alpha Wireless	Sennheiser HD 300 PROtect

Wearing styleDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Over-ear (circumaural), closed-back wireless gaming headset with aluminium frame	Over-ear (circumaural), closed-back wired monitoring headphones
WeightDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification · HyperX does not state whether the microphone is included. The US page lists 0.7 lb. HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications Sennheiser HD 300 PROtect Manufacturer specification · Approximate, without cable, per the specification sheet and quick guide covering both HD 300 PRO and HD 300 PROtect. The product page separately lists 'Product weight (g) 550' without a basis. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	322 g	297 g
Acoustic designDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Closed-back, dual-chamber driver design	Closed-back
Ear cushionsDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Memory foam with premium leatherette	Viscoelastic; replaceable
Contact pressure Sources HyperX Cloud Alpha Wireless No source recorded. Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	Not provided	Approx. 6 N
Serviceability Sources HyperX Cloud Alpha Wireless No source recorded. Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Not provided	Modular: ear pads, headband padding and cable are replaceable

Wired / wireless connectionsDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification · HyperX lists no Bluetooth and no analogue input; the supplied cable is described as a charge cable. HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications Sennheiser HD 300 PROtect Manufacturer specification · The box list names a 1.5 m cable; the specification sheet and quick guide give approx. 1.55 m. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	2.4 GHz wireless via the supplied USB wireless adapter; USB cable for charging	Wired; exchangeable 1.5 m cable with 3.5 mm jack on Sennheiser's system connector, and supplied 6.3 mm (1/4") stereo jack adapter
Battery lifeDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification · HyperX's test condition: 50% headphone volume. The charge time appears on the US page only. Manufacturer footnote [2] describes a fully charged headset plugged via USB to a system, with system and media-player volume at 50%; it does not clearly identify whether that USB wording refers to the headset or its wireless adapter. Retain the rated battery claim, but the exact test connection remains unresolved. HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications Sennheiser HD 300 PROtect Manufacturer specification · The product page lists 'Battery included: N'. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data	Up to 300 hours; about 4.5 hours to charge	Not required: passive wired headphones powered by the audio source
Wireless range Sources HyperX Cloud Alpha Wireless Manufacturer specification · HyperX notes range may vary with environmental conditions. HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications Sennheiser HD 300 PROtect No source recorded.	Up to 20 m	Not provided
USB audio Sources HyperX Cloud Alpha Wireless Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications Sennheiser HD 300 PROtect No source recorded.	USB 2.0, 24-bit	Not provided
Cable arrangement Sources HyperX Cloud Alpha Wireless No source recorded. Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Not provided	Exchangeable cable on Sennheiser's system connector; Sennheiser describes a coiled cable that filters structure-borne noise at the earpiece
Cable length Sources HyperX Cloud Alpha Wireless No source recorded. Sennheiser HD 300 PROtect Manufacturer specification · Approximate; the box list names the cable as 1.5 m. Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	Not provided	1.55 m

Driver constructionDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications Sennheiser HD 300 PROtect Manufacturer specification · Sennheiser does not state the transducer diameter on the pages and documents read. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Dynamic, 50 mm with neodymium magnets, dual-chamber	Dynamic transducers with precision diaphragms
Driver size Sources HyperX Cloud Alpha Wireless Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications Sennheiser HD 300 PROtect No source recorded.	50 mm	Not provided
Rated frequency responseDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications Sennheiser HD 300 PROtect Manufacturer specification · No level tolerance is stated. Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	15 Hz – 21 kHz	6–25,000 Hz
ImpedanceDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification · Listed on the UK page; the US page omits impedance. HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	62 ohm	64 ohm
Rated sensitivityDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification · dB/mW reference. HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications Sennheiser HD 300 PROtect Manufacturer specification · Voltage reference (dB/V), not dB/mW. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	103 dB SPL/mW at 1 kHz	108 ±3 dB SPL (1 kHz, 1 Vrms)
Rated total harmonic distortionDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	≤ 2%	<0.1% at 1 kHz, 94 dB SPL
Spatial audio Sources HyperX Cloud Alpha Wireless Manufacturer specification · HyperX's official US product-page gallery for the Black-Red 4P5D4AA includes an image (03, file hyperx_cloud_alpha_wireless_red_annotated_2_dts_en.jpg) captioned 'DTS® Headphone:X® Spatial Audio', and the UK product page carries a DTS and Headphone:X trademark footnote. Neither page's text describes how it is enabled or on which platforms it works. HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications Sennheiser HD 300 PROtect No source recorded.	DTS Headphone:X spatial audio	Not provided
Hearing protection and comfort Sources HyperX Cloud Alpha Wireless No source recorded. Sennheiser HD 300 PROtect Manufacturer specification · Sennheiser states that the HD 300 PROtect's switchable ActiveGard hearing protection satisfies international directives on industrial safety and noise control. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	Not provided	Switchable ActiveGard limiter that limits peaks above 110 dB; recess for the fontanelle for pressure distribution and wearing comfort
Maximum sound pressure level Sources HyperX Cloud Alpha Wireless No source recorded. Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	Not provided	123 dB SPL at 1 kHz (ActiveGard off); 110 dB SPL at 1 kHz (ActiveGard on)
Rated power Sources HyperX Cloud Alpha Wireless No source recorded. Sennheiser HD 300 PROtect Manufacturer specification · The datasheet labels this 'Power rating'; the product page lists the same figure as 'Power consumption (Amp)'. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Not provided	500 mW

MicrophoneDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification · Detachable bi-directional, noise-cancelling microphone with LED status indicator; pop filter supplied. HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications Sennheiser HD 300 PROtect Manufacturer specification · Monitoring headphones; no microphone is listed in the specifications or package contents. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Yes	No
Active noise cancellation Sources HyperX Cloud Alpha Wireless The reviewed exact sources do not explicitly establish active noise cancellation presence or absence for listening. Preserve separately documented microphone noise reduction, closed construction or passive attenuation; none negates active ANC. · Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications Sennheiser HD 300 PROtect Manufacturer specification · Attenuation is passive: the page lists 'Noise cancellation (db) Max 32 dB (passive)' and no battery. ActiveGard is a peak limiter, not noise cancellation. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Not listed by the manufacturer	No
Microphone Sources HyperX Cloud Alpha Wireless Manufacturer specification · HyperX describes the detachable microphone as Discord and TeamSpeak-certified. HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications Sennheiser HD 300 PROtect No source recorded.	Detachable electret condenser, bi-directional, noise-cancelling; −15 dBFS/Pa at 1 kHz	Not provided
Ambient noise attenuation Sources HyperX Cloud Alpha Wireless No source recorded. Sennheiser HD 300 PROtect Manufacturer specification · Passive attenuation; not active noise cancellation. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Not provided	Up to 32 dB (passive)

Controls Sources HyperX Cloud Alpha Wireless Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications Sennheiser HD 300 PROtect No source recorded.	Onboard audio controls for volume, mic mute and mic monitoring	Not provided
Software controls Sources HyperX Cloud Alpha Wireless Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications Sennheiser HD 300 PROtect No source recorded.	HyperX NGENUITY software: battery-life check, equalizer and further customisation	Not provided

In the boxDifferent Sources HyperX Cloud Alpha Wireless Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data	Headset, USB wireless adapter, USB charge cable, detachable microphone, pop filter, quick start guide	HD 300 PROtect headphones, 1.5 m cable with 3.5 mm jack, 6.3 mm (1/4") stereo jack adapter, quick guide

Operating temperature Sources HyperX Cloud Alpha Wireless No source recorded. Sennheiser HD 300 PROtect Manufacturer specification · Relative humidity up to 90%. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Not provided	−15 °C to +55 °C

Show unverified (1)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.

Specifications without verified values for either product
Compatibility Sources HyperX Cloud Alpha Wireless HyperX's UK and US pages list 'Compatibility: PC' in the specification summary, but the same pages' key-feature list advertises 'Multi-platform compatibility' without naming the platforms. Check the listing for console or mobile support. · Manufacturer specification HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX UK product page and specifications HyperX Cloud Alpha – Wireless Gaming Headset — official HyperX US product page and technical specifications Sennheiser HD 300 PROtect No source recorded.	Conflicting sources	Not provided

First product manufacturer source Second product manufacturer source

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Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.