HEADPHONES · YOUR NEXT FACE-OFF

HyperX Cloud III vs Sennheiser MOMENTUM 4 Wireless

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

Compared products

YOUR FIRST CHOICE

HyperX Cloud III

727A8AA · Black · wired

Full product profile Official image

Exact model & source notes

The HyperX Cloud III (SKU 727A8AA, black) is a closed-back, over-ear wired gaming headset with angled 53 mm drivers, a full metal (aluminium) frame, ear-cup volume and mic-mute controls, a detachable 10 mm noise-cancelling microphone and a USB dongle alongside its 3.5 mm connection. HyperX lists it for PC, PlayStation, Xbox, Switch, Mac and mobile.

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 III for

Higher stated impedance: 64 ohm vs 60 ohm

Choose the Sennheiser MOMENTUM 4 Wireless for

Both wired and wireless connections
Lower stated impedance: 60 ohm vs 64 ohm

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

See the 8 verified differences

THE CONTENDER

Sennheiser MOMENTUM 4 Wireless

Black · model M4AEBT

Full product profile Official image

Exact model & source notes

The MOMENTUM 4 Wireless (article 509266, black) is Sennheiser's closed-back, around-ear Bluetooth headphone with hybrid adaptive noise cancellation, a Transparency Mode, a 42 mm dynamic driver and a rated 60 hours of playback with ANC on. Sennheiser's app adds EQ, presets, sound modes and Sound Personalization, and Smart Pause and Auto On/Off react to the headphones being taken off. It also plays over USB-C from a computer or over a supplied analogue cable.

Specifications checked 26 Sept 2026.

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

Manufacturer specifications

HyperX Cloud III UK & US retailers

UK & US price history: no verified listing yet

Sennheiser MOMENTUM 4 Wireless 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 III64 Ω

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

Source 1

Sennheiser MOMENTUM 4 Wireless60 Ω

Manufacturer specification · Passive (analogue cable) mode; the page lists 470 ohms in active mode.

Source 1

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 ↓

8 verified differences, most decision-relevant first. 1 is also drawn in Visual facts above. Missing information stays separate.

Wired / wireless connections

HyperX Cloud IIIWired: 3.5 mm, plus a USB dongle for USB-C, and USB-A via the supplied adapter

Sennheiser MOMENTUM 4 WirelessBluetooth 5.2 (SBC, AAC, aptX Adaptive); USB-C for charging, calls and streaming from a PC/Mac; 2.5 mm analogue input with supplied 2.5 mm-to-3.5 mm cable

Sources

HyperX Cloud III

Manufacturer specification · No wireless connection. The USB dongle supports 16- and 24-bit audio (USB 2.0).

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

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Connecting the analogue cable switches Bluetooth off (flight mode). The UK product page additionally lists standard aptX.

Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

Check the exact configuration and source conditions for your use.

Impedance

In Visual facts

HyperX Cloud III64 ohm

Sennheiser MOMENTUM 4 Wireless60 ohm

Sources

HyperX Cloud III

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

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

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Passive (analogue cable) mode; the page lists 470 ohms in active mode.

Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications

Check the exact configuration and source conditions for your use.

Driver construction

HyperX Cloud IIIDynamic, 53 mm with neodymium magnets (angled)

Sennheiser MOMENTUM 4 Wireless42 mm dynamic transducer

Sources

HyperX Cloud III

Manufacturer specification

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

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification

Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Controls

HyperX Cloud IIIOnboard ear-cup controls for headphone volume and microphone mute

Sennheiser MOMENTUM 4 WirelessTouch pad on the right ear cup (tap, horizontal and vertical swipe, stretch and pinch gestures) and a multi-function button; Smart Pause pauses playback when the headphones are taken off and resumes when they are put back on; Auto On/Off powers up when picked up and shuts down when not in use; automatic wind noise reduction

Sources

HyperX Cloud III

Manufacturer specification

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

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Sennheiser describes the touch interface as controlling music, calls, ANC and voice assistants; the manual adds volume (vertical swipe) and switching between ANC and Transparency Mode (double tap), and says the touch pad function can be deactivated in the Smart Control app. The multi-function button is the on/off, voice assistant and pairing button. Wind Noise Reduction is set in the Smart Control app's Active Noise Cancellation section (Off, Auto by default, or Max); the UK page describes automatic wind noise suppression for calls.

Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser US store — MOMENTUM 4 Wireless product variant data (SKU and UPC per colour)Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

Check the exact configuration and source conditions for your use.

Rated total harmonic distortion

HyperX Cloud III<2%

Sennheiser MOMENTUM 4 Wireless<0.3% at 1 kHz, 100 dB SPL

Sources

HyperX Cloud III

Manufacturer specification · HyperX does not state the test frequency or level for this figure.

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

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification

Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Rated frequency response

HyperX Cloud III10 Hz – 21 kHz

Sennheiser MOMENTUM 4 Wireless6–22,000 Hz (−10 dB)

Sources

HyperX Cloud III

Manufacturer specification

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

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification

Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Show 2 more verified differences

In the box

HyperX Cloud IIIHeadset, detachable microphone, USB dongle, USB-C to USB-A adapter, quick start guide

Sennheiser MOMENTUM 4 WirelessHeadphones, USB-C to USB-A cable (approx. 1.2 m), 2.5 mm-to-3.5 mm audio cable (approx. 1.2 m), in-flight adapter, carry case

Sources

HyperX Cloud III

Manufacturer specification

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

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification

Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

Check the exact configuration and source conditions for your use.

Rated sensitivity

HyperX Cloud III100 dB SPL/mW at 1 kHz

Sennheiser MOMENTUM 4 Wireless106 dB SPL (1 kHz, 0 dBFS)

Sources

HyperX Cloud III

Manufacturer specification · dB/mW reference.

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

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Digital full-scale reference; not comparable with passive headphones' dB/mW or dB/V ratings.

Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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.

Small physical differences (1)

Weight

HyperX Cloud III308 g

Sennheiser MOMENTUM 4 Wireless293 g

Sources

HyperX Cloud III

Manufacturer specification · Without microphone; 320 g with the microphone attached (UK page). The US page lists 0.67 lb / 0.70 lb.

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

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Approximate, headphones only; the manual does not state a cable-inclusive figure.

Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Configuration & compatibility details (1)

Wearing style

HyperX Cloud IIIOver-ear (circumaural), closed-back wired gaming headset

Sennheiser MOMENTUM 4 WirelessOver-ear (circumaural), closed-back wireless headphones with a foldable design

Sources

HyperX Cloud III

Manufacturer specification

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

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Sennheiser's US store describes a 'Lightweight, foldable design'; the instruction manual says to fold up the headphones and place them in the carry case.

Sennheiser US store — MOMENTUM 4 Wireless product variant data (SKU and UPC per colour)Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

Both sources describe the same wearing style and acoustic design in different words. The extra wording does not establish a different fit; compare the separately listed fields.

Missing or non-comparable evidence (16)

Active noise cancellation

HyperX Cloud IIINot verified

Sennheiser MOMENTUM 4 WirelessYes

Sources

HyperX Cloud III

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 III – Gaming Headset — official HyperX UK product page and specifications

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Hybrid adaptive ANC with a Transparency Mode.

Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Battery life

HyperX Cloud IIINot verified

Sennheiser MOMENTUM 4 WirelessUp to 60 hours of Bluetooth music playback with ANC on; approx. 2 hours to charge fully, with 5 minutes giving up to 4 hours

Sources

HyperX Cloud III

The reviewed exact sources do not explicitly establish battery life or a whole-device no-battery operating requirement. A wired connection, omitted charger or Battery included N does not establish not-required. · Manufacturer specification

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

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Sennheiser's test condition: iPhone at mid volume. Built-in 700 mAh battery (the manual and UK page disagree on its chemistry).

Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

App sound controls

HyperX Cloud IIINot verified

Sennheiser MOMENTUM 4 WirelessSennheiser Smart Control app: built-in EQ, presets, sound modes (e.g. bass boost) and Sound Personalization

Sources

HyperX Cloud III

No source recorded for this side.

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Requires the Sennheiser app on a smartphone; the product page also names it Smart Control Plus.

Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Battery

HyperX Cloud IIINot verified

Sennheiser MOMENTUM 4 WirelessBuilt-in, 3.7 V, 700 mAh, 2.59 Wh

Sources

HyperX Cloud III

No source recorded for this side.

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Capacity agrees across sources (manual 700 mAh, 2.59 Wh; UK page 700 mAh); the chemistry does not, see battery chemistry.

Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Battery chemistry

HyperX Cloud IIINot verified

Sennheiser MOMENTUM 4 WirelessConflicting evidence

Sources

HyperX Cloud III

No source recorded for this side.

Sennheiser MOMENTUM 4 Wireless

The instruction manual states a built-in rechargeable lithium-polymer battery; the UK product page states 'Built-in Lithium-Ion rechargeable batteries 700 mAh'. · Manufacturer specification

Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Bluetooth codecs

HyperX Cloud IIINot verified

Sennheiser MOMENTUM 4 WirelessSBC, AAC, aptX, aptX Adaptive

Sources

HyperX Cloud III

No source recorded for this side.

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Standard aptX is listed on the UK product page ('SBC, AAC, aptX™, aptX adaptive™'); the instruction manual lists only aptX Adaptive, AAC and SBC.

Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Supplied cables

HyperX Cloud IIIHeadset cable 3.93 ft; USB dongle cable 4.26 ft

Sennheiser MOMENTUM 4 WirelessNot verified

Sources

HyperX Cloud III

Manufacturer specification · HyperX lists imperial lengths only.

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

Sennheiser MOMENTUM 4 Wireless

No source recorded for this side.

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

Charging

HyperX Cloud IIINot verified

Sennheiser MOMENTUM 4 WirelessUSB-C; approx. 2 hours for a full charge

Sources

HyperX Cloud III

No source recorded for this side.

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · The maximum charging input differs between Sennheiser's sources: the instruction manual lists 5 V, 750 mA max; the UK product page lists 5 V, 800 mA max. Neither figure is chosen.

Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Driver size

HyperX Cloud III53 mm

Sennheiser MOMENTUM 4 WirelessNot verified

Sources

HyperX Cloud III

Manufacturer specification

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

Sennheiser MOMENTUM 4 Wireless

No source recorded for this side.

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

Ear cushions

HyperX Cloud IIIMemory foam with premium leatherette

Sennheiser MOMENTUM 4 WirelessNot verified

Sources

HyperX Cloud III

Manufacturer specification

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

Sennheiser MOMENTUM 4 Wireless

No source recorded for this side.

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

Frame materials

HyperX Cloud IIIFull metal frame (aluminium)

Sennheiser MOMENTUM 4 WirelessNot verified

Sources

HyperX Cloud III

Manufacturer specification

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

Sennheiser MOMENTUM 4 Wireless

No source recorded for this side.

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

Microphone

HyperX Cloud IIIDetachable electret condenser, unidirectional, noise-cancelling; −42 dBV (0 dB = 1 V/Pa at 1 kHz)

Sennheiser MOMENTUM 4 WirelessNot verified

Sources

HyperX Cloud III

Manufacturer specification

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

Sennheiser MOMENTUM 4 Wireless

No source recorded for this side.

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

Simultaneous Bluetooth connections

HyperX Cloud IIINot verified

Sennheiser MOMENTUM 4 Wireless2

Sources

HyperX Cloud III

No source recorded for this side.

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification

Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Operating temperature

HyperX Cloud IIINot verified

Sennheiser MOMENTUM 4 Wireless0 °C to +40 °C

Sources

HyperX Cloud III

No source recorded for this side.

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification

Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25

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

Compatibility

HyperX Cloud IIIPC, PS5, PS4, Xbox Series X|S, Xbox One, Nintendo Switch, Mac, mobile

Sennheiser MOMENTUM 4 WirelessNot verified

Sources

HyperX Cloud III

Manufacturer specification

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

Sennheiser MOMENTUM 4 Wireless

No source recorded for this side.

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

Transparency (ambient) mode

HyperX Cloud IIINot verified

Sennheiser MOMENTUM 4 WirelessYes

Sources

HyperX Cloud III

No source recorded for this side.

Sennheiser MOMENTUM 4 Wireless

Manufacturer specification · Activated with a touch, according to Sennheiser's UK product page.

Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications

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

2 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 III

Select a feature to check your fit.

YOUR CHOICE

Sennheiser MOMENTUM 4 Wireless

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 III

What it brings

One headset covers 3.5 mm, USB-C and USB-A: the 3.5 mm plug suits devices with a headphone jack, and the supplied USB dongle and adapter cover USB-C and USB-A ports.
Manufacturer source
HyperX lists compatibility with PC, PS5, PS4, Xbox Series X|S, Xbox One, Nintendo Switch, Mac and mobile.
Manufacturer source

What to check

The documented audio connections are 3.5 mm and the supplied USB dongle. The “noise-cancelling” label applies to the microphone; active noise cancellation for listening remains unestablished.
Manufacturer source
HyperX lists 308 g without the microphone and 320 g with it, and publishes cable lengths only in feet on its US page.
Manufacturer source Manufacturer source

Sennheiser MOMENTUM 4 Wireless

What it brings

Sennheiser rates the battery at up to 60 hours of Bluetooth playback with ANC switched on, with about 2 hours for a full charge and 5 minutes giving up to 4 hours.
Manufacturer source Manufacturer source
Besides Bluetooth 5.2 with aptX Adaptive and two simultaneous connections, it accepts USB-C audio from a PC or Mac and an analogue cable for flight use.
Manufacturer source

What to check

The analogue input is a 2.5 mm socket, so the supplied cable (or a similar one) is needed; plugging it in turns Bluetooth off.
Manufacturer source
Sennheiser rates the mass at about 293 g for the headphones alone, and its 106 dB sensitivity figure uses a digital full-scale reference, so it cannot be compared with passive headphones' ratings.
Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

28 of 28 specifications Sources in each row

Source-backed specifications for HyperX Cloud III and Sennheiser MOMENTUM 4 Wireless
Specification	HyperX Cloud III	Sennheiser MOMENTUM 4 Wireless

Wearing styleDifferent Sources HyperX Cloud III Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications HyperX Cloud III – Gaming Headset — official HyperX US product page and technical specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Sennheiser's US store describes a 'Lightweight, foldable design'; the instruction manual says to fold up the headphones and place them in the carry case. Sennheiser US store — MOMENTUM 4 Wireless product variant data (SKU and UPC per colour)Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Over-ear (circumaural), closed-back wired gaming headset	Over-ear (circumaural), closed-back wireless headphones with a foldable design
WeightDifferent Sources HyperX Cloud III Manufacturer specification · Without microphone; 320 g with the microphone attached (UK page). The US page lists 0.67 lb / 0.70 lb. HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications HyperX Cloud III – Gaming Headset — official HyperX US product page and technical specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Approximate, headphones only; the manual does not state a cable-inclusive figure. Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	308 g	293 g
Acoustic design Sources HyperX Cloud III Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Closed-back	Closed-back
Ear cushions Sources HyperX Cloud III Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX US product page and technical specifications Sennheiser MOMENTUM 4 Wireless No source recorded.	Memory foam with premium leatherette	Not provided
Frame materials Sources HyperX Cloud III Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications HyperX Cloud III – Gaming Headset — official HyperX US product page and technical specifications Sennheiser MOMENTUM 4 Wireless No source recorded.	Full metal frame (aluminium)	Not provided

Wired / wireless connectionsDifferent Sources HyperX Cloud III Manufacturer specification · No wireless connection. The USB dongle supports 16- and 24-bit audio (USB 2.0). HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications HyperX Cloud III – Gaming Headset — official HyperX US product page and technical specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Connecting the analogue cable switches Bluetooth off (flight mode). The UK product page additionally lists standard aptX. Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Wired: 3.5 mm, plus a USB dongle for USB-C, and USB-A via the supplied adapter	Bluetooth 5.2 (SBC, AAC, aptX Adaptive); USB-C for charging, calls and streaming from a PC/Mac; 2.5 mm analogue input with supplied 2.5 mm-to-3.5 mm cable
Battery life Sources HyperX Cloud III The reviewed exact sources do not explicitly establish battery life or a whole-device no-battery operating requirement. A wired connection, omitted charger or Battery included N does not establish not-required. · Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Sennheiser's test condition: iPhone at mid volume. Built-in 700 mAh battery (the manual and UK page disagree on its chemistry). Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Not listed by the manufacturer	Up to 60 hours of Bluetooth music playback with ANC on; approx. 2 hours to charge fully, with 5 minutes giving up to 4 hours
Supplied cables Sources HyperX Cloud III Manufacturer specification · HyperX lists imperial lengths only. HyperX Cloud III – Gaming Headset — official HyperX US product page and technical specifications Sennheiser MOMENTUM 4 Wireless No source recorded.	Headset cable 3.93 ft; USB dongle cable 4.26 ft	Not provided
Compatibility Sources HyperX Cloud III Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications Sennheiser MOMENTUM 4 Wireless No source recorded.	PC, PS5, PS4, Xbox Series X\|S, Xbox One, Nintendo Switch, Mac, mobile	Not provided
Bluetooth codecs Sources HyperX Cloud III No source recorded. Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Standard aptX is listed on the UK product page ('SBC, AAC, aptX™, aptX adaptive™'); the instruction manual lists only aptX Adaptive, AAC and SBC. Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Not provided	SBC, AAC, aptX, aptX Adaptive
Simultaneous Bluetooth connections Sources HyperX Cloud III No source recorded. Sennheiser MOMENTUM 4 Wireless Manufacturer specification Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Not provided	2
Charging Sources HyperX Cloud III No source recorded. Sennheiser MOMENTUM 4 Wireless Manufacturer specification · The maximum charging input differs between Sennheiser's sources: the instruction manual lists 5 V, 750 mA max; the UK product page lists 5 V, 800 mA max. Neither figure is chosen. Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Not provided	USB-C; approx. 2 hours for a full charge
Battery Sources HyperX Cloud III No source recorded. Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Capacity agrees across sources (manual 700 mAh, 2.59 Wh; UK page 700 mAh); the chemistry does not, see battery chemistry. Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Not provided	Built-in, 3.7 V, 700 mAh, 2.59 Wh

Driver constructionDifferent Sources HyperX Cloud III Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Dynamic, 53 mm with neodymium magnets (angled)	42 mm dynamic transducer
Driver size Sources HyperX Cloud III Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications Sennheiser MOMENTUM 4 Wireless No source recorded.	53 mm	Not provided
Rated frequency responseDifferent Sources HyperX Cloud III Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications HyperX Cloud III – Gaming Headset — official HyperX US product page and technical specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	10 Hz – 21 kHz	6–22,000 Hz (−10 dB)
ImpedanceDifferent Sources HyperX Cloud III Manufacturer specification · Listed on the UK page only; the US page omits impedance. HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Passive (analogue cable) mode; the page lists 470 ohms in active mode. Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications	64 ohm	60 ohm
Rated sensitivityDifferent Sources HyperX Cloud III Manufacturer specification · dB/mW reference. HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications HyperX Cloud III – Gaming Headset — official HyperX US product page and technical specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Digital full-scale reference; not comparable with passive headphones' dB/mW or dB/V ratings. Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	100 dB SPL/mW at 1 kHz	106 dB SPL (1 kHz, 0 dBFS)
Rated total harmonic distortionDifferent Sources HyperX Cloud III Manufacturer specification · HyperX does not state the test frequency or level for this figure. HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications HyperX Cloud III – Gaming Headset — official HyperX US product page and technical specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	<2%	<0.3% at 1 kHz, 100 dB SPL

Microphone Sources HyperX Cloud III Manufacturer specification · Detachable 10 mm electret condenser microphone, unidirectional, noise-cancelling, with LED mute indicator. HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Four MEMS speech microphones in a 2 × 2 beamforming array for calls. Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Yes	Yes
Active noise cancellation Sources HyperX Cloud III 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 III – Gaming Headset — official HyperX UK product page and specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Hybrid adaptive ANC with a Transparency Mode. Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Not listed by the manufacturer	Yes
Microphone Sources HyperX Cloud III Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications Sennheiser MOMENTUM 4 Wireless No source recorded.	Detachable electret condenser, unidirectional, noise-cancelling; −42 dBV (0 dB = 1 V/Pa at 1 kHz)	Not provided
Transparency (ambient) mode Sources HyperX Cloud III No source recorded. Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Activated with a touch, according to Sennheiser's UK product page. Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications	Not provided	Yes

ControlsDifferent Sources HyperX Cloud III Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications HyperX Cloud III – Gaming Headset — official HyperX US product page and technical specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Sennheiser describes the touch interface as controlling music, calls, ANC and voice assistants; the manual adds volume (vertical swipe) and switching between ANC and Transparency Mode (double tap), and says the touch pad function can be deactivated in the Smart Control app. The multi-function button is the on/off, voice assistant and pairing button. Wind Noise Reduction is set in the Smart Control app's Active Noise Cancellation section (Off, Auto by default, or Max); the UK page describes automatic wind noise suppression for calls. Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser US store — MOMENTUM 4 Wireless product variant data (SKU and UPC per colour)Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Onboard ear-cup controls for headphone volume and microphone mute	Touch pad on the right ear cup (tap, horizontal and vertical swipe, stretch and pinch gestures) and a multi-function button; Smart Pause pauses playback when the headphones are taken off and resumes when they are put back on; Auto On/Off powers up when picked up and shuts down when not in use; automatic wind noise reduction
App sound controls Sources HyperX Cloud III No source recorded. Sennheiser MOMENTUM 4 Wireless Manufacturer specification · Requires the Sennheiser app on a smartphone; the product page also names it Smart Control Plus. Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Not provided	Sennheiser Smart Control app: built-in EQ, presets, sound modes (e.g. bass boost) and Sound Personalization

In the boxDifferent Sources HyperX Cloud III Manufacturer specification HyperX Cloud III – Gaming Headset — official HyperX UK product page and specifications Sennheiser MOMENTUM 4 Wireless Manufacturer specification Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Headset, detachable microphone, USB dongle, USB-C to USB-A adapter, quick start guide	Headphones, USB-C to USB-A cable (approx. 1.2 m), 2.5 mm-to-3.5 mm audio cable (approx. 1.2 m), in-flight adapter, carry case

Operating temperature Sources HyperX Cloud III No source recorded. Sennheiser MOMENTUM 4 Wireless Manufacturer specification Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Not provided	0 °C to +40 °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
Battery chemistry Sources HyperX Cloud III No source recorded. Sennheiser MOMENTUM 4 Wireless The instruction manual states a built-in rechargeable lithium-polymer battery; the UK product page states 'Built-in Lithium-Ion rechargeable batteries 700 mAh'. · Manufacturer specification Sennheiser MOMENTUM 4 Wireless — official UK product page and specifications Sennheiser MOMENTUM 4 (M4AEBT) — instruction manual, version 07/25	Not provided	Conflicting sources

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.