HEADPHONES · YOUR NEXT FACE-OFF

Beyerdynamic AVENTHO 300 vs Beyerdynamic MMX 300 PRO

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

Compared products

YOUR FIRST CHOICE

Beyerdynamic AVENTHO 300

1000981 · Black

Full product profile Official image

Exact model & source notes

The AVENTHO 300 (article 1000981, black) is beyerdynamic's closed-back, foldable over-ear Bluetooth headphone with adaptive hybrid ANC, STELLAR.45 dynamic drivers and Bluetooth 5.4 multipoint. beyerdynamic rates the battery at up to 50 hours with ANC on.

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 AVENTHO 300 for

A wireless connection

Choose the MMX 300 PRO for

A wired connection

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

See the 3 verified differences

THE CONTENDER

Beyerdynamic MMX 300 PRO

730670 · black · wired gaming headset

Full product profile Official image

Exact model & source notes

The MMX 300 PRO (article 730670, black) is beyerdynamic's closed-back, around-ear wired gaming headset with a 48-ohm STELLAR.45 dynamic driver and a cardioid condenser boom microphone. It connects by a detachable cable with separate 3.5 mm headphone and microphone plugs, plus an adapter for single combination jacks.

Specifications checked 26 Sept 2026.

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

Manufacturer specifications

AVENTHO 300 UK & US retailers

UK & US price history: no verified listing yet

MMX 300 PRO 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 SIDE6 topics

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

SELECTED TOPIC

01 / 06

Open-back design

Open-back earcups are not sealed. Start here if your listening space is quiet; this construction is not a sound-quality rating.

Beyerdynamic AVENTHO 300: closed-back · illustration, not to scale

Beyerdynamic MMX 300 PRO: closed-back · illustration, not to scale

Beyerdynamic AVENTHO 300No

Closed-back. Manufacturer specification

Source 1 Source 2

Beyerdynamic MMX 300 PRONo

Closed-back. Manufacturer specification

Source 1 Source 2

Choose your must-haves

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 ↓

3 verified differences, most decision-relevant first. Missing information stays separate.

Wired / wireless connections

Beyerdynamic AVENTHO 300Bluetooth 5.4 with multipoint (AAC, aptX Lossless, aptX Adaptive, LE Audio); USB-C charging port; supplied 3.5 mm mini-jack cable

Beyerdynamic MMX 300 PROWired; detachable single-sided 2.5 m cable ending in two 3.5 mm plugs (headphone and microphone), plus a supplied adapter to a single 3.5 mm combination jack

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification · The sources do not say whether the USB-C port carries audio; only charging is stated.

beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

Manufacturer specification · The cable connects to the headset with a 5-pole jack plug.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

Check the exact configuration and source conditions for your use.

Driver construction

Beyerdynamic AVENTHO 300Dynamic STELLAR.45 drivers, angled

Beyerdynamic MMX 300 PRODynamic STELLAR.45 driver

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification · beyerdynamic's driver name; a diameter is not stated in the sources read.

beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

Manufacturer specification · beyerdynamic's driver name; a diameter is not stated in the sources read.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Rated frequency range

Beyerdynamic AVENTHO 3005–22,000 Hz

Beyerdynamic MMX 300 PRO5–40,000 Hz

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification

beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Small physical differences (1)

Weight

Beyerdynamic AVENTHO 300319 g

Beyerdynamic MMX 300 PRO314 g

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification · Headphones without cable, per the product pages; the spec sheet gives 319 g without stating the basis.

beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 BLACK — official North America store page and technical data beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

Manufacturer specification · The product pages state 314 g without cable; the spec sheet gives 314 g without stating the basis.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — official North America store page and technical data beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Configuration & compatibility details (1)

Wearing style

Beyerdynamic AVENTHO 300Over-ear (circumaural), closed-back, foldable wireless headphones

Beyerdynamic MMX 300 PROOver-ear (circumaural), closed-back wired gaming headset with boom microphone

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification

beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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 (20)

Active noise cancellation

Beyerdynamic AVENTHO 300Yes

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification · Adaptive hybrid ANC with a transparency mode.

beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

The reviewed exact sources do not explicitly establish active noise cancellation absence. Preserve separately sourced acoustic design and passive attenuation; they cannot turn omitted ANC into a false capability. · Manufacturer specification

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Battery life

Beyerdynamic AVENTHO 300Up to 50 hours with ANC on; approx. 2 hours to charge; 10 minutes of quick charging gives 5 hours of playback

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification · beyerdynamic's rating with ANC switched on; test source and volume are not stated. Charging temperature range +10 to +40 °C.

beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

The reviewed exact sources do not explicitly establish battery life or that no battery is required for operation. A wired/dynamic audio path, omitted charger or Battery included N is not an explicit operating-power requirement. The microphone’s separately documented AB supply of 2–9 V/0.6 mA remains known; it does not establish every power requirement of the whole headset. · Manufacturer specification

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Nominal impedance

Beyerdynamic AVENTHO 300Not verified

Beyerdynamic MMX 300 PRO48 ohm

Sources

Beyerdynamic AVENTHO 300

No source recorded for this side.

Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Bluetooth codecs

Beyerdynamic AVENTHO 300AAC, aptX Lossless, aptX Adaptive, LE Audio

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification · SBC is not listed in the official codec lists.

beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

No source recorded for this side.

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

Bluetooth version and profiles

Beyerdynamic AVENTHO 300Bluetooth 5.4; A2DP 1.3.2, AVRCP 1.6.2, HFP 1.8, AVDTP 1.3, AVCTP 1.4, GAVDP 1.3, SPP-B 1.2, RFCOMM 1.2, IOPT

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification

beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

No source recorded for this side.

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

Cable length

Beyerdynamic AVENTHO 300Not verified

Beyerdynamic MMX 300 PRO2.5 m

Sources

Beyerdynamic AVENTHO 300

No source recorded for this side.

Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Charging

Beyerdynamic AVENTHO 300USB-C; USB-C to USB-C cable and USB-A to USB-C adapter supplied

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification

beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

No source recorded for this side.

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

Controls and app

Beyerdynamic AVENTHO 300Touch pad; beyerdynamic app with 5-band equaliser and over-the-air firmware updates; wear detection pauses and resumes playback

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification

beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

No source recorded for this side.

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

Rated total harmonic distortion

Beyerdynamic AVENTHO 300Not verified

Beyerdynamic MMX 300 PRO<0.05% at 500 Hz

Sources

Beyerdynamic AVENTHO 300

No source recorded for this side.

Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Earpads

Beyerdynamic AVENTHO 300Not verified

Beyerdynamic MMX 300 PROVelour, replaceable (spare part 1000502); headband pad also replaceable

Sources

Beyerdynamic AVENTHO 300

No source recorded for this side.

Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Headband pressure

Beyerdynamic AVENTHO 300Not verified

Beyerdynamic MMX 300 PRO5.5 N

Sources

Beyerdynamic AVENTHO 300

No source recorded for this side.

Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

In the box

Beyerdynamic AVENTHO 300Headphones, USB-C to USB-C charging cable, USB-A to USB-C adapter, 3.5 mm mini-jack cable, drawstring bag, hard case, quick start guide, compliance booklet

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification

beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

No source recorded for this side.

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

Microphone specifications

Beyerdynamic AVENTHO 300Not verified

Beyerdynamic MMX 300 PROCardioid back-electret condenser; 20–20,000 Hz; 21.6 mV/Pa at 1 kHz; max. SPL 121 dB; 13 mm capsule; boom approx. 190 mm

Sources

Beyerdynamic AVENTHO 300

No source recorded for this side.

Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Operating temperature

Beyerdynamic AVENTHO 300-10 °C to +50 °C

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification

beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

No source recorded for this side.

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

Ambient noise attenuation

Beyerdynamic AVENTHO 300Not verified

Beyerdynamic MMX 300 PRO18 dBA

Sources

Beyerdynamic AVENTHO 300

No source recorded for this side.

Beyerdynamic MMX 300 PRO

Manufacturer specification · Passive attenuation rated by beyerdynamic.

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Platform compatibility

Beyerdynamic AVENTHO 300Not verified

Beyerdynamic MMX 300 PROPlayStation, Xbox, Nintendo Switch and smartphones via cable; PC via separate headphone and microphone plugs

Sources

Beyerdynamic AVENTHO 300

No source recorded for this side.

Beyerdynamic MMX 300 PRO

Manufacturer specification · Analogue 3.5 mm connection only; no USB or wireless connection is listed.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Power handling

Beyerdynamic AVENTHO 300Not verified

Beyerdynamic MMX 300 PRO30 mW

Sources

Beyerdynamic AVENTHO 300

No source recorded for this side.

Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Rated sensitivity

Beyerdynamic AVENTHO 300Not verified

Beyerdynamic MMX 300 PRO96 dB SPL at 1 mW / 500 Hz

Sources

Beyerdynamic AVENTHO 300

No source recorded for this side.

Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Spatial audio

Beyerdynamic AVENTHO 300Dolby Atmos with Dolby Head Tracking

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification

beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

No source recorded for this side.

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

Wireless range

Beyerdynamic AVENTHO 300Up to 15 m

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO 300

Manufacturer specification

beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25)

Beyerdynamic MMX 300 PRO

No source recorded for this side.

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

Beyerdynamic AVENTHO 300

Select a feature to check your fit.

YOUR CHOICE

Beyerdynamic MMX 300 PRO

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

Beyerdynamic AVENTHO 300

What it brings

Supported codecs are AAC, aptX Lossless, aptX Adaptive and LE Audio, so a phone or computer that supports one of these can use it instead of a basic connection.
Manufacturer source Manufacturer source
A rated 50 hours with ANC on, 10-minute quick charging for 5 hours and a supplied hard case and 3.5 mm cable suit long trips.
Manufacturer source Manufacturer source

What to check

SBC is not in beyerdynamic's codec list, and the sources do not say whether the USB-C port can carry audio.
Manufacturer source Manufacturer source
beyerdynamic does not state the test conditions (source, volume) behind the 50-hour battery figure, so real runtime may differ.
Manufacturer source

Beyerdynamic MMX 300 PRO

What it brings

The analogue connection with a supplied combination-jack adapter lets the same headset plug into a PC's separate audio jacks or the combination jack of a console, tablet or phone.
Manufacturer source Manufacturer source
The boom microphone is a cardioid condenser with a published 20–20,000 Hz range and sensitivity, so its pickup can be checked against other headsets' specifications.
Manufacturer source

What to check

Ambient noise attenuation is rated at 18 dBA. The supplied audio cable uses separate 3.5 mm headphone and microphone plugs, plus a combination-jack adapter.
Manufacturer source Manufacturer source
Official sources disagree on the inline remote: the spec sheet mentions a cable with an integrated remote control, while the product page lists the headset as without remote.
Manufacturer source Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

27 of 27 specifications Sources in each row

Source-backed specifications for Beyerdynamic AVENTHO 300 and Beyerdynamic MMX 300 PRO
Specification	Beyerdynamic AVENTHO 300	Beyerdynamic MMX 300 PRO

Wearing styleDifferent Sources Beyerdynamic AVENTHO 300 Manufacturer specification beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Over-ear (circumaural), closed-back, foldable wireless headphones	Over-ear (circumaural), closed-back wired gaming headset with boom microphone
WeightDifferent Sources Beyerdynamic AVENTHO 300 Manufacturer specification · Headphones without cable, per the product pages; the spec sheet gives 319 g without stating the basis. beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 BLACK — official North America store page and technical data beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO Manufacturer specification · The product pages state 314 g without cable; the spec sheet gives 314 g without stating the basis. beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — official North America store page and technical data beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	319 g	314 g
Acoustic design Sources Beyerdynamic AVENTHO 300 Manufacturer specification beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Closed-back	Closed-back
Headband pressure Sources Beyerdynamic AVENTHO 300 No source recorded. Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Not provided	5.5 N
Earpads Sources Beyerdynamic AVENTHO 300 No source recorded. Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Not provided	Velour, replaceable (spare part 1000502); headband pad also replaceable

Wired / wireless connectionsDifferent Sources Beyerdynamic AVENTHO 300 Manufacturer specification · The sources do not say whether the USB-C port carries audio; only charging is stated. beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO Manufacturer specification · The cable connects to the headset with a 5-pole jack plug. beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Bluetooth 5.4 with multipoint (AAC, aptX Lossless, aptX Adaptive, LE Audio); USB-C charging port; supplied 3.5 mm mini-jack cable	Wired; detachable single-sided 2.5 m cable ending in two 3.5 mm plugs (headphone and microphone), plus a supplied adapter to a single 3.5 mm combination jack
Battery life Sources Beyerdynamic AVENTHO 300 Manufacturer specification · beyerdynamic's rating with ANC switched on; test source and volume are not stated. Charging temperature range +10 to +40 °C. beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO The reviewed exact sources do not explicitly establish battery life or that no battery is required for operation. A wired/dynamic audio path, omitted charger or Battery included N is not an explicit operating-power requirement. The microphone’s separately documented AB supply of 2–9 V/0.6 mA remains known; it does not establish every power requirement of the whole headset. · Manufacturer specification beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Up to 50 hours with ANC on; approx. 2 hours to charge; 10 minutes of quick charging gives 5 hours of playback	Not listed by the manufacturer
Bluetooth codecs Sources Beyerdynamic AVENTHO 300 Manufacturer specification · SBC is not listed in the official codec lists. beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO No source recorded.	AAC, aptX Lossless, aptX Adaptive, LE Audio	Not provided
Bluetooth version and profiles Sources Beyerdynamic AVENTHO 300 Manufacturer specification beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO No source recorded.	Bluetooth 5.4; A2DP 1.3.2, AVRCP 1.6.2, HFP 1.8, AVDTP 1.3, AVCTP 1.4, GAVDP 1.3, SPP-B 1.2, RFCOMM 1.2, IOPT	Not provided
Wireless range Sources Beyerdynamic AVENTHO 300 Manufacturer specification beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO No source recorded.	Up to 15 m	Not provided
Charging Sources Beyerdynamic AVENTHO 300 Manufacturer specification beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO No source recorded.	USB-C; USB-C to USB-C cable and USB-A to USB-C adapter supplied	Not provided
Cable length Sources Beyerdynamic AVENTHO 300 No source recorded. Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Not provided	2.5 m
Platform compatibility Sources Beyerdynamic AVENTHO 300 No source recorded. Beyerdynamic MMX 300 PRO Manufacturer specification · Analogue 3.5 mm connection only; no USB or wireless connection is listed. beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Not provided	PlayStation, Xbox, Nintendo Switch and smartphones via cable; PC via separate headphone and microphone plugs

Driver constructionDifferent Sources Beyerdynamic AVENTHO 300 Manufacturer specification · beyerdynamic's driver name; a diameter is not stated in the sources read. beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO Manufacturer specification · beyerdynamic's driver name; a diameter is not stated in the sources read. beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Dynamic STELLAR.45 drivers, angled	Dynamic STELLAR.45 driver
Rated frequency rangeDifferent Sources Beyerdynamic AVENTHO 300 Manufacturer specification beyerdynamic AVENTHO 300 BLACK — official product page and technical data (global store)beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	5–22,000 Hz	5–40,000 Hz
Spatial audio Sources Beyerdynamic AVENTHO 300 Manufacturer specification beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO No source recorded.	Dolby Atmos with Dolby Head Tracking	Not provided
Nominal impedance Sources Beyerdynamic AVENTHO 300 No source recorded. Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Not provided	48 ohm
Rated sensitivity Sources Beyerdynamic AVENTHO 300 No source recorded. Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Not provided	96 dB SPL at 1 mW / 500 Hz
Rated total harmonic distortion Sources Beyerdynamic AVENTHO 300 No source recorded. Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Not provided	<0.05% at 500 Hz
Power handling Sources Beyerdynamic AVENTHO 300 No source recorded. Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Not provided	30 mW

Microphone Sources Beyerdynamic AVENTHO 300 Manufacturer specification · Six digital MEMS microphones for calls and ANC. beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO Manufacturer specification · Cardioid back-electret condenser boom microphone; boom approx. 190 mm. beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Yes	Yes
Active noise cancellation Sources Beyerdynamic AVENTHO 300 Manufacturer specification · Adaptive hybrid ANC with a transparency mode. beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO The reviewed exact sources do not explicitly establish active noise cancellation absence. Preserve separately sourced acoustic design and passive attenuation; they cannot turn omitted ANC into a false capability. · Manufacturer specification beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Yes	Not listed by the manufacturer
Ambient noise attenuation Sources Beyerdynamic AVENTHO 300 No source recorded. Beyerdynamic MMX 300 PRO Manufacturer specification · Passive attenuation rated by beyerdynamic. beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Not provided	18 dBA
Microphone specifications Sources Beyerdynamic AVENTHO 300 No source recorded. Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	Not provided	Cardioid back-electret condenser; 20–20,000 Hz; 21.6 mV/Pa at 1 kHz; max. SPL 121 dB; 13 mm capsule; boom approx. 190 mm

Controls and app Sources Beyerdynamic AVENTHO 300 Manufacturer specification beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO No source recorded.	Touch pad; beyerdynamic app with 5-band equaliser and over-the-air firmware updates; wear detection pauses and resumes playback	Not provided

In the box Sources Beyerdynamic AVENTHO 300 Manufacturer specification beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO No source recorded.	Headphones, USB-C to USB-C charging cable, USB-A to USB-C adapter, 3.5 mm mini-jack cable, drawstring bag, hard case, quick start guide, compliance booklet	Not provided

Operating temperature Sources Beyerdynamic AVENTHO 300 Manufacturer specification beyerdynamic AVENTHO 300 — spec sheet E2/AVENTHO 300 (03.25) Beyerdynamic MMX 300 PRO No source recorded.	-10 °C to +50 °C	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.