Headsets and headphones / Compare

ASUS ROG Delta II vs beyerdynamic MMX 300 PRO

A

Product A: ASUS

ROG Delta II

86 of 161 known

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B

Product B: beyerdynamic

MMX 300 PRO

64 of 161 known

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All 161 fields

Every value links to where we found it.

Only differences

AASUS ROG Delta II

Bbeyerdynamic MMX 300 PRO

General

6 of 8 differ

Series

ROG Delta1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

MMX1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026Maker describes the product as part of its MMX series.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

A701, 90YH03W0-BHAA006Owner's manualdlcdnets.asus.com/pub/ASUS/Accessory/Headset/ROG_Delta_II_Wireless_Gaming_Headset/Q23401a_A701_ROG_DELTA_II_QSG_WEB.pdfRead 23 October 2026QSG model A701. A701Dongle is the receiver and is excluded. Black US retail code comes from Newegg.7Retailer pagenewegg.com/asus-a701-rog-delta-ii-blk-black/p/N82E16826785266Read 23 October 2026Model A701 ROG DELTA II/BLK, part 90YH03W0-BHAA00. Standard Black US reference.

7306701Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026

GTIN / EAN

Not available

40101187306721Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

2 July 20242Press releasebeyerdynamic.prezly.com/gaming-headset-with-studio-sound-beyerdynamic-releases-the-new-mmx-300-proRead 23 October 2026Release body is dated Heilbronn, 2 July 2024. CMS header is 1 July. Body identifies the launch and immediate availability.

Status

Available1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

Available1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026Exact standard black model is offered for purchase and next-business-day shipment. MANUFAKTUR is excluded.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

$299.993Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Contemporaneous 30 July 2024 US review specifies MSRP $299.99 for this exact model. US price excludes sales tax.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

€2992Press releasebeyerdynamic.prezly.com/gaming-headset-with-studio-sound-beyerdynamic-releases-the-new-mmx-300-proRead 23 October 2026German launch recommended retail price, including VAT. Current discounts are excluded.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

DE2Press releasebeyerdynamic.prezly.com/gaming-headset-with-studio-sound-beyerdynamic-releases-the-new-mmx-300-proRead 23 October 2026Launch explicitly offers the product in the German maker shop.

ColoursiThe maker's own colour names

Black1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026Reference is the standard Black edition. Limited editions and white editions are excluded from this file.

black1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026

Segment

Gaming1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

Gaming1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026

Design

4 of 7 differ

Form factor

Over-ear3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026

Over-ear4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026

Ear cup enclosureiClosed, open or semi-open acoustic enclosure. This does not describe how the headset folds.

Closed14Maker product pagerog.asus.com/ca-en/articles/gaming-headsets/if-youve-never-gamed-on-an-open-back-headset-its-time-to-level-up-your-audioRead 23 October 2026Maker February 4, 2026 article explicitly identifies ROG Delta II as a closed-back alternative to Kithara.

Closed4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026

Wearing style

Headband3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026

Headband4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026

FoldingiFlat means the ear cups rotate flat. Inward means the ear cups fold toward the headband.

Flat3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026Review states ear cups swivel flat. Maker Foldability No describes absence of inward hinges.

None3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Design section explicitly says it does not fold.

Swivelling ear cupsiEar cups can rotate relative to the headband. Tilting alone does not count.

Yes3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026

No3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Design section says cups do not swivel. Limited lateral fit adjustment is distinguished from swivel.

RGB lighting

Yes1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

No3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Specification table lists Lighting: None.

Lighting zonesiNumber of independently controllable lighting areas across both ear cups.

13Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026Reviewer explicitly describes one lighting customization zone for the headset. Six maker effects do not mean six independent zones.

Not available

Drivers and sound

13 of 20 differ

Driver type

Dynamic3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026

Dynamic4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026

Driver sizeiDiameter of the largest sound driver. Do not use the microphone capsule diameter.

50mm1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

45mm5Retailer pagemicrocenter.com/product/685512/beyerdynamic-mmx-300-pro-wired-gaming-headsetRead 23 October 2026Exact 730670 specification tab states Driver 45 mm.

Drivers per sideiNumber of sound-producing transducers in one side, excluding microphones.

Not available

Not available

Diaphragm material

Titanium-plated diaphragm1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

Not available

Magnet

Not available

Neodymium5Retailer pagemicrocenter.com/product/685512/beyerdynamic-mmx-300-pro-wired-gaming-headsetRead 23 October 2026Exact 730670 specification tab states Magnet: Neodymium. Unreliable aggregator claims are not used.

Frequency response (wired or passive)iPublished acoustic range for wired listening, or the maker’s single range when no mode is distinguished. Power state and test standard belong in the source note.

Min20 HzMax20 kHz1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026Maker gives one acoustic range. Its LC3+ codec is used in 2.4 GHz mode, not Bluetooth.

Min5 HzMax40 kHz4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026Page 2 headphone technical specifications. Published acoustic range under EN 60268-7.

Wireless audio transmission bandiFrequency range of audio transmitted over the wireless connection, not the acoustic response of the driver. Codec, sampling rate and bitrate conditions belong in the source note. When the maker gives a range per codec, the widest range is stored and its codec goes in the source note.

Not available

Not available

Impedance (passive when specified)iUse the headset-off value for a passive analog connection when the maker publishes both powered and passive values. Note the power state and test frequency.

32Ω1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026Published 32 ohm. No measurement frequency or power state is stated.

48Ω4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026Page 2, nominal impedance per system. Analog-only model.

Sensitivity (passive when specified)iUse the headset-off figure when both powered and passive values exist. The power or voltage reference, test distance and frequency belong in the source note.

Not available

96dB4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026Page 2, 96 dB SPL at 1 mW and 500 Hz.

Sensitivity referenceiPublished power or voltage reference for sensitivity. Do not assume 1 mW when the source gives only a dB value.

Not available

Per 1 mW4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026

THD (claimed)iPublished distortion figure or numerical upper bound. The source note states any less-than sign and test level.

Not available

0.05%4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026Page 2 states less than 0.05% at 500 Hz. Stored numerical upper bound. Test sound level is not given.

Max input power

Not available

30mW4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026Page 2 power handling capacity 30 mW.

Max digital audio sample rateiHighest supported digital audio sample rate over a USB cable or wireless dongle. This is not the microphone rate or acoustic frequency response.

96kHz4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026Highest playback mode is 24-bit/96 kHz through the 2.4 GHz receiver.

Not available

Max digital audio bit depthiHighest published digital playback bit depth over a USB cable or wireless dongle.

24bits4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 20262.4 GHz receiver playback. Does not establish microphone sample rate.

Not available

DAC

Not available

Not available

Personalised soundiA manufacturer-supported hearing test or ear scan creates a device sound profile tailored to the listener. Generic equalizer adjustments do not count.

Not available

Not available

Onboard EQiCustom playback EQ profiles stored in the headset and applied without the host app running. Note supported active connections. Receiver-only or software-only EQ does not count.

Yes9Maker product pagerog-forum.asus.com/t5/gaming-peripherals/asus-rog-delta-2-ps5-settings-new-features-to-add/td-p/1089070Read 23 October 2026ASUS moderator MasterC confirms 2.4 GHz onboard memory saves EQ and lighting. Other Armoury Crate effects do not carry to PS5.

No3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Entirely analog headset with no built-in processing or bundled software. EQ requires external host processing.

Custom EQ bandsiNumber of bands in the custom playback equalizer. Microphone EQ bands are excluded.

83Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026

Not available

EQ presets

Not available

Not available

Volume limit

Not available

Not available

Spatial audio

2 of 3 differ

Spatial audio supportiNamed headset or host spatial-audio systems that the maker or reviewer explicitly supports. A platform feature may require compatible hardware, software or a separate licence.

Virtual 7.1 surround sound4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026Armoury Crate virtual 7.1 processing. No bundled paid spatial licence is established.

Not available

Spatial audio licence includediA paid spatial-audio licence is bundled or embedded. Compatibility with a separately purchased app does not count.

Not available

No3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Review explicitly says no built-in virtual surround and no bundled surround software.

Head tracking

Not available

Not available

Noise cancelling

0 of 10 differ

Active noise cancelling

No1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

No6Reviewsoundguys.com/beyerdynamic-mmx-300-pro-review-121186Read 23 October 2026Exact-model FAQ explicitly says active noise cancellation is absent. The directional microphone is separate.

ANC typeiFeedforward uses outside microphones. Feedback uses inside microphones. Hybrid uses both. Voice-call noise filtering is separate.

Not available

Not available

ANC microphonesiTotal microphones used for active playback noise cancellation across both sides. Do not substitute the total physical or voice microphone count.

Not available

Not available

Adaptive ANCiNoise cancellation automatically changes with the environment or fit. Manually choosing a level does not count.

Not available

Not available

ANC levelsiNumber of adjustable cancellation strength steps. Off and transparency modes are excluded.

Not available

Not available

ANC attenuation (claimed)

Not available

Not available

Transparency mode

Not available

Not available

Adjustable transparency

Not available

Not available

Conversation detectioniAudio pauses or lowers automatically when the wearer speaks. Voice assistant activation does not count.

Not available

Not available

Wind noise reduction

Not available

Not available

Measured

9 of 21 differ

Frequency response notesiMeasured by a reviewer, not claimed by the maker

With mesh pads and the flat preset over wireless, bass and upper treble are elevated. The reviewer observed lower upper-midrange output and elevated bass distortion.8Reviewtechporn.ph/asus-rog-delta-ii-wireless-gaming-headset-reviewRead 23 October 2026Reviewer compares actual curves for pads, presets and connections. Stored summary concerns flat preset, mesh pads and wireless. Rig, firmware and volume are not identified. Numeric target-deviation fields are not derived from the plots.

The measured response has reduced sub-bass, a lower-midrange dip and a pronounced treble peak.7Measurementsoundguys.com/beyerdynamic-mmx-300-pro-review-121186Read 23 October 2026Objective Measurements section compares the stock headset with the SoundGuys house target. Lower-midrange dip is around 200 to 500 Hz and treble peak around 6 to 8 kHz. Rig and firmware are not specified in this review.

Bass amountiReviewer’s bass deviation from its stated target. Positive is more bass. Target and test method belong in the source note.

Not available

Not available

Treble amountiReviewer’s treble deviation from its stated target. Positive is more treble. Target and test method belong in the source note.

Not available

Not available

Deviation from targetiReviewer’s full-range error from its target curve. Do not substitute a regional bass or treble error.

Not available

Not available

Consistency between fittingsiReviewer’s standard deviation across repeated fittings. Test rig and fitting procedure belong in the source note.

Not available

Not available

Harmonic distortioniIndependently measured harmonic distortion, with test level and method in the source note.

Not available

Not available

Sound leakageiIndependently measured leakage at 30 cm. Playback level and method belong in the source note.

Not available

Not available

Measured noise isolationiIndependently measured attenuation. Positive values mean more noise reduction. ANC state, rig and frequency bands belong in the source note.

AASUS ROG Delta II

ANC on	Overall (dB)
No	24.1

Source8Reviewtechporn.ph/asus-rog-delta-ii-wireless-gaming-headset-reviewRead 23 October 2026PU leather pads. Passive overall mean reduction 24.1 dB. Reviewer says attenuation improves above 650 Hz, but does not identify rig or band limits. Separate mesh-pad result is given in dBA and is not mixed into this dB table.

Bbeyerdynamic MMX 300 PRO

Not available

Noise isolation (measured, best)iMeasured by a reviewer, not claimed by the maker

24.1dB=CalculatedFrom Measured noise isolation

Not available

Passive isolation (measured)iMeasured by a reviewer, not claimed by the maker

24.1dB=CalculatedFrom Measured noise isolation

Not available

Mic quality notesiMeasured by a reviewer, not claimed by the maker

Measured microphone response favors lower frequencies. Recordings sound fuller but can be muddy or nasal.8Reviewtechporn.ph/asus-rog-delta-ii-wireless-gaming-headset-reviewRead 23 October 2026Reviewer frequency-response plots and recordings. Noise Gate and Perfect Voice were tested separately. Firmware and capture route are unstated.

Speech recordings sound natural and clear in the ideal-condition sample. Office and reverberant samples are also provided.7Measurementsoundguys.com/beyerdynamic-mmx-300-pro-review-121186Read 23 October 2026Reviewer recorded ideal, office and reverberant-space speech samples. No numeric speech-to-noise ratio or bandwidth is inferred.

Mic low-frequency extensioniMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic high-frequency extensioniMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic speech-to-noise ratioiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Measured latencyiEnd-to-end latency measured by a reviewer for a specific connection, platform and codec. Firmware, method and operating mode belong in the source note.

AASUS ROG Delta II

Connection	Latency (ms)
2.4 GHz	22
Bluetooth	220

Source8Reviewtechporn.ph/asus-rog-delta-ii-wireless-gaming-headset-reviewRead 23 October 2026OSLTT measured average delay: 22 ms receiver and 220 ms Bluetooth. Platform, codec and firmware are not named, so those columns are omitted.

Bbeyerdynamic MMX 300 PRO

Not available

Bluetooth latency (measured, worst)iMeasured by a reviewer, not claimed by the maker

220ms=CalculatedFrom Measured latency

Not available

2.4 GHz latency (measured, worst)iMeasured by a reviewer, not claimed by the maker

22ms=CalculatedFrom Measured latency

Not available

Measured battery lifeiReviewer’s continuous playback test. State the connection, ANC and lighting where known. Unknown settings stay omitted and are described in the source note.

Not available

Not available

Battery life (measured, max)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Clamping forceiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Weight (measured)iIndependently weighed headset. A review that repeats the maker’s number does not qualify. Cable and microphone inclusion belong in the source note.

300g(10.6 oz)8Reviewtechporn.ph/asus-rog-delta-ii-wireless-gaming-headset-reviewRead 23 October 2026Reviewer weighs 300 g without microphone and 311 g with it. Mesh pads reduce mass by another 3 g. Stored value uses the standard PU pads without microphone. Scale model is unstated.

Not available

Microphone

9 of 16 differ

MicrophoneiMain microphone used for speech. Secondary internal microphones may be described in the source note.

Detachable boom4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026

Fixed boom3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Design and microphone sections explicitly describe a non-detachable rotating gooseneck boom.

Microphone element

Not available

Electret condenser4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026

Microphone pickup patterniUse the maker’s exact named pattern. Unidirectional does not establish whether the capsule is cardioid, supercardioid or hypercardioid.

Unidirectional5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

Cardioid4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026

Voice microphonesiTotal microphones used for voice pickup or beamforming across both sides. ANC-only microphones are excluded.

Not available

Not available

Total microphonesiEvery physical microphone across the headset, including call, ANC and calibration microphones. Shared microphones count once. Excludes microphones in charging cases or receivers, and vibration sensors. Use an explicitly published physical total, never a sum of overlapping role counts.

Not available

Not available

Mic frequency responseiAcoustic microphone response, not its digital sampling rate. Connection-specific ranges belong in the source note.

Min100 HzMax10 kHz5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

Min20 HzMax20 kHz4Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026Page 2 microphone technical specifications, EN 60268-7. Sensitivity is stated as 21.6 mV/Pa at 1 kHz, which has no directly compatible mV field.

Mic sensitivityiPublished microphone sensitivity. Reference such as dBV/Pa or dBFS, frequency and distance belong in the source note.

-40dB5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026Published -40 dB. Reference and tolerance are not stated by the maker.

Not available

Mic signal-to-noiseiPublished microphone signal-to-noise ratio. Minimum or typical conditions belong in the source note.

Not available

Not available

Mic sample rateiExplicitly published digital microphone capture or speech sampling rate. State the audio route in the source note, or say it is unpublished. Internal capture does not prove the effective rate on every connection. Acoustic bandwidth, playback rate and generic microphone-chip capability do not qualify.

Not available

Not available

Mic noise reductioniProcessing that removes noise from transmitted speech. Playback ANC and a directional microphone alone do not count.

DSP3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026Armoury Crate provides software noise gate and Perfect Voice. Maker says no AI microphone cancellation.

None3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Microphone section distinguishes cardioid directionality from software noise cancellation. No transmitted-speech DSP is present.

Flip to mute

Not available

Not available

Mute button

Yes4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026

Not available

Mute indicatoriPublished indication of microphone mute. mechanical_marker is a visible physical marker showing the microphone's mute-switch position. LED options require an electronic light. The in-line controller option is for a mute light on a cable remote.

LED on mic4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026

Physical mute marker8Owner's manualapi.beyerdynamic.de/amfile/file/download/file/1760Read 23 October 2026Printed page 5: sliding the mute switch down exposes a red physical marking. This is not an LED.

Sidetone

Yes3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026Software sidetone through Armoury Crate. The review does not establish onboard sidetone for console use.

Not available

Adjustable sidetone

Not available

Not available

Foam microphone windscreeniA foam cover for the voice microphone. An internal metal mesh pop filter does not count.

Yes3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026

Yes3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Review explicitly identifies a removable foam pop filter.

Connectivity

9 of 20 differ

Audio connectionsiConnections that carry playback audio. Charging or firmware USB alone does not count as USB audio.

Analog, 2.4 GHz, Bluetooth4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026

Analog8Owner's manualapi.beyerdynamic.de/amfile/file/download/file/1760Read 23 October 2026Printed pages 4 to 5 describe analog headphone and microphone plugs, plus console combination-jack adapter.

Analog source plugsiAnalog plug(s) supplied for the source device, including adapters. The headset-side jack is listed separately.

3.5 mm TRRS8Reviewtechporn.ph/asus-rog-delta-ii-wireless-gaming-headset-reviewRead 23 October 2026Reviewer explicitly identifies the supplied 2 m cable as TRRS.

Dual 3.5 mm, 3.5 mm TRRS9Retailer pagethomann.fr/beyerdynamic_mmx_300_pro.htmRead 23 October 2026Exact product lists dual 3.5 mm source plugs and supplied two-female-to-one-TRRS console adapter. Confirmed by public Chrome retailer page after normal intl fetch failed.

Cable connector on headsetiConnection used by the playback cable at the headset. A fixed cable is not replaceable through a headset jack.

3.5 mm6Owner's manualdlcdnets.asus.com/pub/ASUS/Accessory/Headset/ROG_Delta_II_Wireless_Gaming_Headset/Q23401a_A701_ROG_DELTA_II_QSG_WEB.pdfRead 23 October 2026

3.5 mm2Press releasebeyerdynamic.prezly.com/gaming-headset-with-studio-sound-beyerdynamic-releases-the-new-mmx-300-proRead 23 October 2026Connector table explicitly identifies 3.5 mm at the headset cable end. Manual page 4 specifies five poles and locking protection. This does not imply compatibility with generic TRS cables.

Longest included cableiLength of the longest supplied cable, including charging and dongle cables. Individual cable lengths are listed in Cables included.

2m5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

2.5m8Owner's manualapi.beyerdynamic.de/amfile/file/download/file/1760Read 23 October 2026Printed page 7: included straight playback cable is 2.5 m. Optional 1.2 m console cable is excluded.

Headset USB plug or portiUSB plug or port on the headset or its included wired audio adapter. A charging-only USB port can appear here.

USB-C5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

Not available

Audio over USB-C cableiPlayback through a USB-C cable or included wired USB-C audio adapter. A charging-only USB-C port does not count.

No6Owner's manualdlcdnets.asus.com/pub/ASUS/Accessory/Headset/ROG_Delta_II_Wireless_Gaming_Headset/Q23401a_A701_ROG_DELTA_II_QSG_WEB.pdfRead 23 October 2026QSG labels headset USB-C as charging. Playback paths are receiver, Bluetooth and 3.5 mm.

No3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Review identifies an entirely analog model with 3.5 mm audio only.

Passive wired listeningiAnalog playback works with the headset powered off or its battery empty. An active analog converter that needs headset power does not count.

Yes6Owner's manualdlcdnets.asus.com/pub/ASUS/Accessory/Headset/ROG_Delta_II_Wireless_Gaming_Headset/Q23401a_A701_ROG_DELTA_II_QSG_WEB.pdfRead 23 October 2026English instructions call 3.5 mm passive mode and require wireless modes off. Do not charge while using analog.

Yes3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Entirely analog headset. The playback drivers use source power. Microphone needs the host mic bias supply specified by maker, not a headset battery.

Wireless receiveriDedicated wireless audio receiver or dongle. A wired USB sound card does not count.

Included5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

None3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Wired-only model. Supplied adapter is passive analog, not a wireless receiver.

Wireless receiver connectoriPhysical USB connector on the receiver. Supplied extension cables and adapters are explained in the source note. Both means two native connector types.

USB-C5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026Native USB-C dongle. Supplied USB-A adapter does not make the receiver a native dual-connector device.

Not available

Wireless range (claimed)iMaker’s advertised wireless range. Connection and indoor or outdoor conditions belong in the source note. Measured distance is not stored here.

Not available

Not available

Bluetooth

5.24Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026Maker comparison table lists BT 5.2 for Delta II.

Not available

Bluetooth codecsiNamed Bluetooth audio codecs supported by this exact model. Host, firmware and operating-mode restrictions belong in the source note.

SBC, AAC12Reviewcool3c.com/article/223472Read 23 October 2026Exact-model review explicitly distinguishes SBC/AAC over Bluetooth from LC3+ over the 2.4 GHz SpeedNova connection. LC3+ is not placed in the Bluetooth codec list.

Not available

LE AudioiLE Audio playback support. Bluetooth Low Energy for app control alone does not count.

Not available

Not available

AuracastiAuracast broadcast audio support. Required phone, firmware and app conditions belong in the source note.

Not available

Not available

Bluetooth multipointiCan remain connected to multiple Bluetooth source devices at once. Mixing Bluetooth with a proprietary dongle is a separate field. A maker's dual connection to two Bluetooth devices at once counts.

Not available

Not available

Multipoint devicesiNumber of Bluetooth source devices connected at once, not the number remembered for later pairing.

Not available

Not available

Paired devices remembered

Not available

Not available

Mixes 2.4 GHz and Bluetooth audioiPlays both wireless audio streams at the same time. Automatic switching or Bluetooth standby does not count.

Yes4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026

Not available

Fast pairing

Not available

Not available

Base station

Not available

Not available

Latency

None of 2 known

Low latency modeiA selectable mode intended to reduce audio delay. A low-latency connection without a distinct mode does not count.

Not available

Not available

Claimed latencyiMaker’s claimed delay for the stated connection and mode. Minimum claims and host restrictions belong in the source note.

Not available

Not available

Compatibility

2 of 3 differ

Compatible platformsiPlatforms with a documented audio path. This does not imply every connection or microphone function works. Platform editions must be checked individually.

Windows, macOS, PS4, PS5, Nintendo Switch, Xbox One, Xbox Series X|S, Android, iOS5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026Xbox consoles require 3.5 mm analog. The maker lists iPad as well as iOS. Tablet OS has no separate schema enum.

Windows, PS5, PS4, Nintendo Switch1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026Maker names PC, PS5, PS4 and Nintendo Switch. Exact Windows 10/11 support is separately published by Micro Center. Generic Xbox lacks a generation, so no Xbox generation is inferred.5Retailer pagemicrocenter.com/product/685512/beyerdynamic-mmx-300-pro-wired-gaming-headsetRead 23 October 2026System requirements explicitly names Windows 10 and Windows 11. Console names are backed by maker page.

Connection per platformiOnly explicitly documented playback paths for the exact model. Microphone support is separate. Leave unknown microphone support omitted. An Xbox and a PlayStation edition of one headset can connect differently, so it is per variant.

AASUS ROG Delta II

Platform	Connection	Microphone works
Xbox One	Analog	Yes
Xbox Series X|S	Analog	Yes
Windows	Analog	Yes
Windows	2.4 GHz	Not available
PS5	2.4 GHz	Yes

Source12Reviewcool3c.com/article/223472Read 23 October 2026Cool3c explicitly documents microphone-capable 4-pole analog to Xbox controllers and laptops. English QSG and maker PC focus document receiver operation. TechRadar tests receiver playback and microphone on PS5. No unsupported full platform matrix is inferred.13Reviewtechradar.com/computing/peripherals-accessories/asus-rog-delta-ii-headset-review-spatial-audio-shines-in-a-headset-catered-to-ps5-and-pc-gamersRead 23 October 2026PS5 wireless gameplay and clear microphone chat tested. Source names September 12 US release, later than German August availability.

Bbeyerdynamic MMX 300 PRO

Platform	Connection	Microphone works
Windows	Analog	Yes
PS5	Analog	Not available
PS4	Analog	Not available
Nintendo Switch	Analog	Not available

Source1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026Manual page 4 documents separate PC audio output and microphone input. Maker FAQ documents 3.5 mm console playback. Console microphone support is not separately established.

Official licence

Not available

Not available

Battery and charging

7 of 13 differ

Battery capacityiRated capacity of one headset battery. Do not use case, receiver or total multi-battery capacity.

1,800mAh5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

Not available

Swappable batteryiBattery can be exchanged by the user as part of normal operation. Service or recycling disassembly does not count.

Not available

Not available

Batteries includediNumber of headset batteries supplied, including the one already installed.

Not available

Not available

Claimed battery lifeiMaker’s maximum playback time per stated connection, codec, ANC, spatial audio and lighting settings. Name the spatial processing mode and other conditions in the source note. Unknown settings stay omitted.

AASUS ROG Delta II

Connection	Lighting	Hours (h)
2.4 GHz	No	110
2.4 GHz	Yes	24
Bluetooth	No	140
Bluetooth	Yes	27

Source4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026Up to these runtimes. Lighting-on rows use default lighting. Volume and microphone state are not given. ANC is absent, but unknown test settings remain omitted.

Bbeyerdynamic MMX 300 PRO

Not available

Battery life (claimed, max)

140h=CalculatedFrom Claimed battery life

Not available

Battery life with ANC (claimed)

Not available

Not available

Battery life without ANC (claimed)

Not available

Not available

Charging port

USB-C5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

None3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Entirely analog wired model with no battery or charging hardware.

Full charge timeiPublished time to fully charge a depleted headset. In-use charging can take longer.

Not available

Not available

Quick charge timeiCharge duration in the maker’s quick-charge claim. Read together with Quick charge playback.

15min4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026

Not available

Quick charge playbackiPlayback gained from Quick charge time. Charger power, codec, volume and ANC conditions belong in the source note.

11h4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026Up to eleven hours after fifteen minutes charging. The page does not state playback connection, level or charger output.

Not available

Use while charging

Yes6Owner's manualdlcdnets.asus.com/pub/ASUS/Accessory/Headset/ROG_Delta_II_Wireless_Gaming_Headset/Q23401a_A701_ROG_DELTA_II_QSG_WEB.pdfRead 23 October 2026QSG caution explicitly discusses using the headset while charging. This applies to wireless, since analog instructions prohibit concurrent charging.

Not available

Charging dock or stand

Not available

Not available

Controls

3 of 6 differ

Controls

Buttons, Volume wheel, Slider4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026Separate volume wheels and multifunction buttons for receiver and Bluetooth, plus receiver power slider. Mixing the two sources is separate from game/chat mix.

In-line remote, Volume wheel, Slider8Owner's manualapi.beyerdynamic.de/amfile/file/download/file/1760Read 23 October 2026Printed page 5 shows cable volume wheel and sliding mic mute switch. Maker product-page Without Remote row is incorrect and contradicted by this exact manual and datasheet.

Volume control

Wheel4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026

In-line remote8Owner's manualapi.beyerdynamic.de/amfile/file/download/file/1760Read 23 October 2026Printed page 5 locates volume control on the included cable remote.

Game and chat mixiBalances separate game and chat audio streams. Mixing Bluetooth and dongle source volume alone does not count. Supported platforms belong in the source note.

Not available

Not available

Remappable controlsiOn-device button, touch or dial functions can be reassigned. Changing EQ alone does not count.

No8Reviewtechporn.ph/asus-rog-delta-ii-wireless-gaming-headset-reviewRead 23 October 2026Reviewer explicitly says remapping is missing.

Not available

Wear detection

Not available

Not available

Voice assistant

Not available

Not available

Comfort and build

6 of 11 differ

Headband type

Padded3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026

Padded3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026

Headband material

Leatherette exterior with fabric-covered memory foam padding3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026

Leatherette over padding3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Design section describes a black leatherette-covered padded headband.

Frame material

Plastic headband with aluminum yokes3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026

Spring steel headband core1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026

Ear cup material

Plastic3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026

Plastic3Reviewtomshardware.com/peripherals/gaming-headsets/beyerdynamic-mmx-300-pro-reviewRead 23 October 2026Design section explicitly identifies plastic earcups.

Ear pad material

PU leather with memory foam, or breathable mesh fabric4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026

Velours1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026

Replaceable ear pads

Yes4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026

Yes1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026

Ear pad attachmentiHow a replacement ear pad attaches to the ear cup, not how the decorative outer cover attaches. A press-fit or snap-on pad counts as clip.

Stretch-over3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026Replacement cushions stretch around the rim. They do not twist off.

Not available

Ear pad openingiUsable opening inside an ear pad, excluding the outer cushion. Depth is the internal space between pad surface and driver cover.

Width54Height64Depth30mm(2.1 × 2.5 × 1.2 in)8Reviewtechporn.ph/asus-rog-delta-ii-wireless-gaming-headset-reviewRead 23 October 2026Reviewer reports approximate internal pad dimensions: 64 mm high, 54 mm wide, 30 mm deep. Pad set is not specified.

Not available

Ear tips included

Not available

Not available

Dust and water rating

Not available

Not available

User-replaceable parts

Boom microphone, Ear cushions4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026

Ear pads, Headband pad, Cable1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026Maker explicitly lists earpads, headband and cable as replacements. Manual pages 4 and 6 show user removal.

Software

3 of 3 differ

Companion app

ASUS Armoury Crate, Armoury Crate Gear and Gear Link5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026Current spec page lists Gear Link and Armoury Crate. Official Windows support offers device-specific Armoury Crate Gear.

Not available

App platforms

Windows10Reviewwindowscentral.com/accessories/headphones-headsets/asus-rog-delta-ii-reviewRead 23 October 2026Windows Armoury Crate and Armoury Crate Gear. Gear Link browser support is not treated as proof of every host OS.

Not available

User firmware updates

Yes3Reviewtomshardware.com/peripherals/gaming-headsets/asus-rog-delta-ii-reviewRead 23 October 2026Review describes headset firmware updates in Armoury Crate.

Not available

Dimensions and weight

1 of 2 differ

Headset weightiPublished headset mass without detachable cable or microphone when stated. A fixed cable remains included. Any unqualified maker weight is identified in the source note.

318g(11.2 oz)4Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-iiRead 23 October 2026Maker lists 318 g without stating whether microphone or cables are included.

314g(11.1 oz)1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026Technical data explicitly says headphones without cable: 314 g. Current datasheet and manual agree. Launch press table instead says 318 g and is superseded.

Headset dimensionsiBody size with headband upright and ear cups in their normal wearing position. Width is across the head, height is top to bottom, and depth is front to back. Folded or flat-swivel dimensions are not substituted.

Not available

Not available

Certifications

0 of 3 differ

Hi-Res Audio

Not available

Not available

Communication certifications

Not available

Not available

FCC ID

MSQ-A70111Regulatory filingfccid.io/MSQ-A701/Test-Report/A701-TestRpt-Part-15-249-7361187.pdfRead 23 October 2026DEKRA report 2430203R-RFUSV09S-A page 1 identifies ASUS Gaming Headset A701. Public mirror of the FCC exhibit.

Not available

Other certifications

Not available

Not available

In the box

2 of 3 differ

In the box

ROG Delta II headset, Detachable boom microphone, ROG Hybrid ear cushions, 2.4 GHz USB-C wireless dongle, USB-C to USB-A adapter, 1.5 m USB-C to USB-A charging cable, 2 m 3.5 mm audio cable, User guide5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

MMX 300 PRO headset, 2.5 m PC cable, 15 cm console adapter, Gooseneck pop screen2Press releasebeyerdynamic.prezly.com/gaming-headset-with-studio-sound-beyerdynamic-releases-the-new-mmx-300-proRead 23 October 2026Scope of delivery table. Standard black model only.

Cables includediSupplied playback, charging, dongle and adapter cables. A permanently attached headset cable is included and named as fixed.

AASUS ROG Delta II

Type	Length (m)	Count
USB-C to USB-A charging cable	1.5	1
3.5 mm analog audio cable	2	1

Source5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

Bbeyerdynamic MMX 300 PRO

Type	Length (m)	Count
Detachable headset cable to dual 3.5 mm PC plugs	2.5	1
Dual 3.5 mm sockets to 3.5 mm combination-jack console adapter	0.15	1

Source2Press releasebeyerdynamic.prezly.com/gaming-headset-with-studio-sound-beyerdynamic-releases-the-new-mmx-300-proRead 23 October 2026Launch table gives each supplied cable length. Optional short console cable is not included.

Carrying caseiSupplied carrying case or pouch. A retail carton does not count as a carrying case.

None5Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026Maker explicitly states Carry bag/box: No.

None6Reviewsoundguys.com/beyerdynamic-mmx-300-pro-review-121186Read 23 October 2026Use section explicitly says it does not come with a carrying case.

Links

Not compared

Product page

rog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

europe.beyerdynamic.com/p/mmx-300-pro1Maker product pageeurope.beyerdynamic.com/p/mmx-300-proRead 23 October 2026

Spec sheet

rog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/spec1Maker product pagerog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-ii/specRead 23 October 2026

api.beyerdynamic.de/amfile/file/download/file/17594Maker spec sheet (PDF)api.beyerdynamic.de/amfile/file/download/file/1759Read 23 October 2026

Manual

dlcdnets.asus.com/pub/ASUS/Accessory/Headset/ROG_Delta_II_Wireless_Gaming_Headset/Q23401a_A701_ROG_DELTA_II_QSG_WEB.pdf6Owner's manualdlcdnets.asus.com/pub/ASUS/Accessory/Headset/ROG_Delta_II_Wireless_Gaming_Headset/Q23401a_A701_ROG_DELTA_II_QSG_WEB.pdfRead 23 October 2026Original maker QSG Q23401a, First Edition June 2024, two-page multilingual foldout. English setup and control diagram on page 1.

api.beyerdynamic.de/amfile/file/download/file/17608Owner's manualapi.beyerdynamic.de/amfile/file/download/file/1760Read 23 October 2026

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year10Reviewwindowscentral.com/accessories/headphones-headsets/asus-rog-delta-ii-reviewRead 23 October 2026US review spec table identifies one-year limited warranty. Retailer policies and statutory rights are excluded.

2years8Owner's manualapi.beyerdynamic.de/amfile/file/download/file/1760Read 23 October 2026Printed page 7 gives beyerdynamic limited warranty of 2 years. European/German reference. Retailer warranty extensions are excluded.

Both are also in the API. Back to all headsets and headphones.