HEADPHONES · YOUR NEXT FACE-OFF

Beyerdynamic AVENTHO Y vs Beyerdynamic MMX 300 PRO

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

Compared products

YOUR FIRST CHOICE

Beyerdynamic AVENTHO Y

1002671 · Liquid Black · wireless ANC over-ear

Full product profile Official image

Exact model & source notes

The AVENTHO Y (article 1002671, Liquid Black) is beyerdynamic's foldable, closed-back wireless over-ear headphone with active noise cancellation and a transparency mode. It has a 45 mm dynamic driver, Bluetooth 6.0 with multipoint (SBC and AAC), two integrated ENC call microphones, a 5-band app equaliser and a user-replaceable battery rated at up to 90 hours without ANC and 60 hours with it. It weighs 316 g.

Specifications checked 27 Sept 2026.

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

Manufacturer specifications

WHAT DIFFERS

Driver construction45 mm dynamic driverDynamic STELLAR.45 driver

Rated frequency range20–20,000 Hz5–40,000 Hz

2 of 6 verified differences, in the order listed below. Not a rating.

See the 6 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 Y 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 Y: closed-back · illustration, not to scale

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

Beyerdynamic AVENTHO YNo

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 ↓

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

Wired / wireless connections

Beyerdynamic AVENTHO YBluetooth 6.0 with multipoint; USB-C port (beyerdynamic lists the supplied USB-C to USB-C cable type as 'USB-C / audio 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 Y

Manufacturer specification · An optional upgrade package adds a USB-C dongle and boom microphone; it is not in the standard box.

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 Y45 mm dynamic driver

Beyerdynamic MMX 300 PRODynamic STELLAR.45 driver

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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.

Earpads

Beyerdynamic AVENTHO YInterchangeable, magnetically attached; optional velour ear pads in black/grey

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

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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)

Check the exact configuration and source conditions for your use.

Rated frequency range

Beyerdynamic AVENTHO Y20–20,000 Hz

Beyerdynamic MMX 300 PRO5–40,000 Hz

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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.

Microphone type

Beyerdynamic AVENTHO Y2 integrated microphones with ENC (environmental noise cancellation); META VOICE boom mic available as an optional accessory

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 Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Beyerdynamic MMX 300 PRO

Manufacturer specification

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

Check the exact configuration and source conditions for your use.

Device compatibility

Beyerdynamic AVENTHO YSmartphones, tablets, laptops and desktop computers with Bluetooth; iOS, Android, Windows and macOS

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

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data

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)

Check the exact configuration and source conditions for your use.

Small physical differences (1)

Weight without cable

Beyerdynamic AVENTHO Y316 g

Beyerdynamic MMX 300 PRO314 g

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification · The product pages state 316 g without cable; the specification sheet gives 316 g without stating the basis.

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 YOver-ear, closed-back foldable wireless headphones

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

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 (22)

Active noise cancellation

Beyerdynamic AVENTHO YYes

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification · No attenuation figure is published.

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 YUp to 90 hours without ANC; up to 60 hours with ANC

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification · The specification sheet says 'up to'; the product page's technical data says 'More than 90 hours' and 'More than 60 hours' with ANC. The battery is user-replaceable.

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 YNot verified

Beyerdynamic MMX 300 PRO48 ohm

Sources

Beyerdynamic AVENTHO Y

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.

App features

Beyerdynamic AVENTHO Ybeyerdynamic app: customise music playback and device controls, 5-band equaliser, over-the-air firmware updates

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 codecs

Beyerdynamic AVENTHO YSBC, AAC

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 YBluetooth 6.0; HFP, A2DP, AVRCP

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 YNot verified

Beyerdynamic MMX 300 PRO2.5 m

Sources

Beyerdynamic AVENTHO Y

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.

Charge time

Beyerdynamic AVENTHO Y1 hour full charge; 5 minutes gives 6 hours of playtime

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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.

Charging

Beyerdynamic AVENTHO YUSB-C

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification · Charging temperature range 0 to +45 °C.

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 YNot verified

Beyerdynamic MMX 300 PRO<0.05% at 500 Hz

Sources

Beyerdynamic AVENTHO Y

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.

Driver diameter

Beyerdynamic AVENTHO Y45 mm

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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.

Headband pressure

Beyerdynamic AVENTHO YNot verified

Beyerdynamic MMX 300 PRO5.5 N

Sources

Beyerdynamic AVENTHO Y

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 YAVENTHO Y headphones, USB-C to USB-C charging cable, soft bag, quick start guide, compliance booklet

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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.

Construction

Beyerdynamic AVENTHO YFoldable, with aluminium yoke and round ear cups

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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.

Multipoint

Beyerdynamic AVENTHO YYes — Multipoint Bluetooth 6.0

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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.

Operating temperature

Beyerdynamic AVENTHO Y−10 to +50 °C

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 YNot verified

Beyerdynamic MMX 300 PRO18 dBA

Sources

Beyerdynamic AVENTHO Y

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.

Power handling

Beyerdynamic AVENTHO YNot verified

Beyerdynamic MMX 300 PRO30 mW

Sources

Beyerdynamic AVENTHO Y

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 YNot verified

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

Sources

Beyerdynamic AVENTHO Y

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.

Serviceability

Beyerdynamic AVENTHO YUser-replaceable battery in the left ear cup, behind the magnetically attached ear cushion

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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.

Transparency mode

Beyerdynamic AVENTHO YYes

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 YUp to 20 m

Beyerdynamic MMX 300 PRONot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

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 Y

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 Y

What it brings

The battery can be replaced by the user — it sits in the left ear cup behind the magnetic ear cushion — and the ear pads are interchangeable.
Manufacturer source Manufacturer source
beyerdynamic rates up to 60 hours with ANC on, and a 5-minute charge gives 6 hours of playtime.
Manufacturer source Manufacturer source
A USB-C dongle and boom microphone can be added later as an optional upgrade package.
Manufacturer source

What to check

The codec list is SBC and AAC only, and the boom microphone and dongle are not in the standard box.
Manufacturer source Manufacturer source
beyerdynamic publishes no ANC attenuation figure, and its battery wording differs between 'up to' (specification sheet) and 'more than' (product page).
Manufacturer source 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

32 of 32 specifications Sources in each row

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

Wearing styleDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) 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, closed-back foldable wireless headphones	Over-ear (circumaural), closed-back wired gaming headset with boom microphone
Acoustic design Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) 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
Weight without cableDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification · The product pages state 316 g without cable; the specification sheet gives 316 g without stating the basis. beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) 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)	316 g	314 g
EarpadsDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) 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)	Interchangeable, magnetically attached; optional velour ear pads in black/grey	Velour, replaceable (spare part 1000502); headband pad also replaceable
Serviceability Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	User-replaceable battery in the left ear cup, behind the magnetically attached ear cushion	Not provided
Construction Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	Foldable, with aluminium yoke and round ear cups	Not provided
Headband pressure Sources Beyerdynamic AVENTHO Y 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

Wired / wireless connectionsDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification · An optional upgrade package adds a USB-C dongle and boom microphone; it is not in the standard box. beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) 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 6.0 with multipoint; USB-C port (beyerdynamic lists the supplied USB-C to USB-C cable type as 'USB-C / audio 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
Bluetooth version and profiles Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	Bluetooth 6.0; HFP, A2DP, AVRCP	Not provided
Bluetooth codecs Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	SBC, AAC	Not provided
Multipoint Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	Yes — Multipoint Bluetooth 6.0	Not provided
Wireless range Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	Up to 20 m	Not provided
Battery life Sources Beyerdynamic AVENTHO Y Manufacturer specification · The specification sheet says 'up to'; the product page's technical data says 'More than 90 hours' and 'More than 60 hours' with ANC. The battery is user-replaceable. beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) 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 90 hours without ANC; up to 60 hours with ANC	Not listed by the manufacturer
Charge time Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	1 hour full charge; 5 minutes gives 6 hours of playtime	Not provided
Charging Sources Beyerdynamic AVENTHO Y Manufacturer specification · Charging temperature range 0 to +45 °C. beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	USB-C	Not provided
Device compatibilityDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data 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)	Smartphones, tablets, laptops and desktop computers with Bluetooth; iOS, Android, Windows and macOS	PlayStation, Xbox, Nintendo Switch and smartphones via cable; PC via separate headphone and microphone plugs
Cable length Sources Beyerdynamic AVENTHO Y 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

Driver constructionDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) 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)	45 mm dynamic driver	Dynamic STELLAR.45 driver
Driver diameter Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	45 mm	Not provided
Rated frequency rangeDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) 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)	20–20,000 Hz	5–40,000 Hz
Nominal impedance Sources Beyerdynamic AVENTHO Y 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 Y 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 Y 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 Y 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 Y Manufacturer specification · Two integrated microphones with ENC; a META VOICE boom microphone is an optional accessory. beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) 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
Microphone typeDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO Manufacturer specification beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)	2 integrated microphones with ENC (environmental noise cancellation); META VOICE boom mic available as an optional accessory	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
Active noise cancellation Sources Beyerdynamic AVENTHO Y Manufacturer specification · No attenuation figure is published. beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) 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
Transparency mode Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	Yes	Not provided
Ambient noise attenuation Sources Beyerdynamic AVENTHO Y 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

App features Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	beyerdynamic app: customise music playback and device controls, 5-band equaliser, over-the-air firmware updates	Not provided

In the box Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	AVENTHO Y headphones, USB-C to USB-C charging cable, soft bag, quick start guide, compliance booklet	Not provided

Operating temperature Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Beyerdynamic MMX 300 PRO No source recorded.	−10 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.