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Marshall Monitor III A.N.C. vs soundcore Q30

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Product A: Marshall

Monitor III A.N.C.

80 of 161 known

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B

Product B: soundcore

Q30

66 of 161 known

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Every value links to where we found it.

Only differences

AMarshall Monitor III A.N.C.

Bsoundcore Q30

General

6 of 8 differ

Series

Monitor1Press releasegroup.marshall.com/2024/09/25/marshall-and-billie-joe-armstrong-join-forces-to-unveil-feature-packed-monitor-iii-a-n-c-headphonesRead 23 October 2026

Life4Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026The sibling feed entry us.soundcore.com/products/a3028011.json carries the tag Life Series.

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

MONITIII, 1006861, 1009077, 10091633Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Public maker page product data lists orderable US Black 1006861, Cream 1009077 and Pitch Black 1009163. Regulatory MONITIII comes from FCC filing.

A3028, A3028013, A3028023, A3028033, A30280531Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Guide title and SN code table are for model A3028.3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Product model numbers A3028013 (black), A3028033 (navy) and A3028053 (pink).4Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026Product feed SKUs: A3028013 Black, A3028033 Midnight Blue, A3028053 Sakura Pink, A3028023 White.8Retailer pageamazon.com/dp/B08Q89DN6VRead 20 October 2026Item details: Model Number A3028, Mfr Part Number A3028031, model name Life Q30.

GTIN / EAN

7340055401777, 73400554114794Retailer pageargos.co.uk/product/3347382/GM-VariantRead 23 October 2026Exact UK Black model 1006861 EAN. Other Argos hardware specs contain errors and are not substituted for maker data.42Retailer pagebhphotovideo.com/c/product/1958585-REG/marshall_1009077_monitor_iii_a_n_c_wireless.html/overviewRead 23 October 2026Exact Cream SKU 1009077 EAN 7340055411479.

194644062132, 194644224219, 194644064792, 1946440648154Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026Product feed barcodes: 194644062132 Black, 194644064792 Midnight Blue, 194644064815 Sakura Pink, 194644224219 White.

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

24 September 20242Press articlenotebookcheck.com/Marshall-stellt-neue-kabellose-ANC-Kopfhoerer-Monitor-III-A-N-C-vor.890514.0.htmlRead 23 October 2026Contemporaneous September 24, 2024 German launch report says announced today. Maker corporate post is dated September 25, one day after stated retail availability.

October 20207Press articleimore.com/ankers-new-soundcore-life-q30-headphones-feature-upgraded-noise-cancellation-moreRead 20 October 2026Announcement reported on 23 October 2020.

Status

Available1Press releasegroup.marshall.com/2024/09/25/marshall-and-billie-joe-armstrong-join-forces-to-unveil-feature-packed-monitor-iii-a-n-c-headphonesRead 23 October 2026Launch from September 24, 2024. Current maker page still lists orderable colors.

Available4Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026The page sells the headphones at $79.99 to $85.99 by color.

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

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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

$79.997Press articleimore.com/ankers-new-soundcore-life-q30-headphones-feature-upgraded-noise-cancellation-moreRead 20 October 2026Article body: available for $79.99. The summary line prints $79.95, which is not used.

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.

€3492Press articlenotebookcheck.com/Marshall-stellt-neue-kabellose-ANC-Kopfhoerer-Monitor-III-A-N-C-vor.890514.0.htmlRead 23 October 2026Contemporaneous German launch report names 349 EUR at Marshall and retailers. Consumer price including VAT as published. The Black launch finish is covered. Later Cream and Pitch Black launch prices are not established.

Not available

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

US, GB, DE3Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026US maker store. UK Black GTIN from Argos and German launch availability from Notebookcheck. Not a global list.

Not available

ColoursiThe maker's own colour names

Black, Cream, Pitch Black3Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Current exact-model maker colorways. Hardware is presented as one marketed model.

Black, Midnight Blue, Sakura Pink, White4Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026Color options: Black, Midnight Blue, Sakura Pink and White.

Segment

Music1Press releasegroup.marshall.com/2024/09/25/marshall-and-billie-joe-armstrong-join-forces-to-unveil-feature-packed-monitor-iii-a-n-c-headphonesRead 23 October 2026Maker describes music listening headphones in Monitor line.

Music4Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026The maker sells it as music and travel noise cancelling headphones.

Design

2 of 7 differ

Form factor

Over-ear5Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026Manual cover over-ear headphones.

Over-ear8Retailer pageamazon.com/dp/B08Q89DN6VRead 20 October 2026Item details: ear placement over ear.9Retailer pageeuronics.ee/en/audio/headphones/wireless-headphones/a3028313/soundcore-q30-black-wireless-headphonesRead 20 October 2026Specifications: type over-ear, circumaural headphones.

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

Closed6Reviewsoundguys.com/marshall-monitor-iii-anc-review-a-worthy-alternative-to-sony-and-bose-131654Read 23 October 2026Exact-model FAQ explicitly closed-back headphones.

Closed9Retailer pageeuronics.ee/en/audio/headphones/wireless-headphones/a3028313/soundcore-q30-black-wireless-headphonesRead 20 October 2026Specifications: acoustics, closed back headphones.

Wearing style

Headband5Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026

Headband1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Wearing page: adjust the headband length for a comfortable fit.

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

Flat and inward5Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026Printed page 6 hard-case instructions rotate left/right cups and fold inward until pads meet.

Not available

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

Yes5Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026Printed page 6 explicitly rotates left counterclockwise and right clockwise.

Not available

RGB lighting

Not available

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

Not available

Not available

Drivers and sound

9 of 20 differ

Driver type

Dynamic7Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026

Dynamic3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Spec table: 40 mm dynamic driver.

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

32mm7Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026

40mm1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026SPECS table: Driver size 40 mm.3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Spec table: 40 mm dynamic driver.

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

Not available

12Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004670/en_US/000004670.pdfRead 20 October 2026Soundcore Life Q30 user manual (2022 print), Specifications page: Driver size 40 mm x 2. Two drivers in total, one per ear cup. The 2022 manual also lists Bluetooth 5.0 and 40 and 60 hours, so only the driver count is taken from it.

Diaphragm material

Not available

Silk4Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026Page text: 40 mm drivers with highly flexible silk diaphragms.

Magnet

Not available

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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 kHz7Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Current single frequency range 20-20,000 Hz. Mode and test tolerance unspecified. Not a wireless passband.

Min20 HzMax40 kHz1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026SPECS table: Frequency response 20 Hz - 40 kHz, no test conditions. Anker Japan splits it into 20 Hz - 20 kHz over Bluetooth and 16 Hz - 40 kHz over the AUX cable. The manual wins between maker documents.

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

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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.

46Ω7Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Current maker audio specification 46 ohm. Earlier secondary reviews give 35 ohm. Current maker wins. No passive power-off impedance claimed.

16Ω1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026SPECS table: Impedance 16 ohm. The power state is not stated.8Retailer pageamazon.com/dp/B08Q89DN6VRead 20 October 2026Item details: audio impedance 16 ohm.

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.

91dB7Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Current maker 91 dB SPL at -18 dBFS, 1 kHz. This is not per 1 mW or per 1 V, so sensitivity_reference omitted. Earlier reviewers quote different sensitivity references.

Not available

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

Not available

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

Not available

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Max input power

Not available

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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.

Not available

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

Not available

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DAC

Not available

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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

Yes8Retailer pageamazon.com/dp/B08Q89DN6VRead 20 October 2026Feature bullet: personalize your listening with HearID, EQ modes and adjustable ANC settings in the soundcore app.

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.

Not available

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

58Reviewsoundguys.com/marshall-monitor-iii-anc-review-a-worthy-alternative-to-sony-and-bose-131654Read 23 October 2026App section five-band custom playback EQ. HeadphoneCheck corroborates. Five presets are stated but a complete exact name list is not published.

Not available

EQ presets

Bass Boost9Reviewtechradar.com/audio/wireless-headphones/marshall-monitor-iii-anc-reviewRead 23 October 2026Review explicitly names bass boost. Full factory-name list was not independently verified, so only the named option is stored.

Not available

Volume limit

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Spatial audio

1 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.

Soundstage10Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Maker named Soundstage spatial processing of stereo content into a virtual room. Head tracking not 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

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Head tracking

Not available

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Noise cancelling

5 of 10 differ

Active noise cancelling

Yes11Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Maker active noise cancellation. No topology or total physical microphone count specified.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Noise cancellation page: switch to Noise Cancellation mode with the NC button. It is enabled by default on power-up.

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

Not available

Hybrid4Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026Page text: hybrid active noise cancellation with dual noise-detecting microphones. Hybrid is stored as the ANC type.

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

415Reviewnotebookcheck.com/Exklusiv-zum-Markstart-Marshall-Monitor-III-A-N-C-im-Praxis-Test-Tolles-Design-wie-ist-der-Klang.890386.0.htmlRead 23 October 2026Equipment section explicitly four microphones continuously record surrounding noise for ANC, increased from two. It does not establish speech microphone count or physical total.

Not available

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

Yes14Reviewheadphonecheck.com/test/marshall-monitor-iii-a-n-cRead 23 October 2026ANC section explicitly describes adaptive noise cancelling. Maker does not name a specific adaptive ANC mode. Adaptive Loudness remains a separate sound feature.

Not available

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

314Reviewheadphonecheck.com/test/marshall-monitor-iii-a-n-cRead 23 October 2026Controls section explicitly three intensity levels for ANC, separately from three transparency levels. Off is excluded.

Not available

ANC attenuation (claimed)

Not available

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Transparency mode

Yes11Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Transparency page: switch with the NC button or touch the right ear cup for 1 second (enabled in the app).

Adjustable transparency

Yes11Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Common question Soundstage sliders are not used here. Exact noise-control support guide and SoundGuys explicitly adjustable transparency.13Reviewsoundguys.com/marshall-monitor-iii-anc-review-a-worthy-alternative-to-sony-and-bose-131654Read 23 October 2026Noise cancelling section explicitly three adjustable transparency levels.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026App page: the soundcore app adjusts ambient sound levels.

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

Not available

Not available

Wind noise reduction

Yes11Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Maker corporate launch explicitly microphones designed to reduce wind noise for ANC and calls. A claim, not a measured attenuation value.12Press releasegroup.marshall.com/2024/09/25/marshall-and-billie-joe-armstrong-join-forces-to-unveil-feature-packed-monitor-iii-a-n-c-headphonesRead 23 October 2026Launch text explicitly reduction of wind noise for ANC and calls.

Not available

Measured

5 of 21 differ

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

The measured default response has more bass and treble and less midrange than the SoundGuys Preference Curve. ANC off adds some bass.17Reviewsoundguys.com/marshall-monitor-iii-anc-review-a-worthy-alternative-to-sony-and-bose-131654Read 23 October 2026Objective Measurements section. Default profile, nominal level, ANC-on comparison with ANC-off. Firmware and exact codec not published. No chart points converted into numeric dB fields.

Not available

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.

Not available

Not available

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

Not available

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

Not available

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

The recorded samples reject background noise well but lose vocal clarity. Loud speech can clip. Wind, street, office and reverberant conditions were tested.17Reviewsoundguys.com/marshall-monitor-iii-anc-review-a-worthy-alternative-to-sony-and-bose-131654Read 23 October 2026Recorded speech samples in simulated office, street, wind and reverberant conditions. Test codec, firmware and capture route are unpublished. The vote count is not a measurement.

Not available

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

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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.

Not available

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

Not available

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

Not available

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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.

AMarshall Monitor III A.N.C.

Connection	ANC	Hours (h)
Bluetooth	Yes	68
Bluetooth	No	110.32

Source16Reviewchip.de/test-kaufberatung/tv-audio/marshall-monitor-iii-a-n-c-im-test_a4725ea6-a9f4-4e8b-aa22-0f51f8c0d1c3.htmlRead 23 October 2026Tested July 11, 2026. Full-runtime table 68 h 00 min ANC on and 110 h 19 min off. CHIP describes continuous fixed-playlist Bluetooth playback at the same calibrated volume across products. Numeric SPL, codec, firmware and spatial-processing state unpublished. 110 h 19 min converted to hours. Partial 15-minute-charge runtimes excluded. SoundGuys could not complete its separate battery test and contributes no runtime.

Bsoundcore Q30

Not available

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

110.32h=CalculatedFrom Measured battery life

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.

253g(8.9 oz)16Reviewchip.de/test-kaufberatung/tv-audio/marshall-monitor-iii-a-n-c-im-test_a4725ea6-a9f4-4e8b-aa22-0f51f8c0d1c3.htmlRead 23 October 2026Independent CHIP test table 253 g. Cable inclusion not stated. Maker claims 250 g.

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Microphone

0 of 16 differ

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

Built-in18Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Audio specification explicitly Microphone & Remote yes and maker describes phone-call handling. No unsupported speech-mic count, pattern or element added.

Built-in3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Page text: built-in microphone for hands-free calls over Bluetooth. The microphone does not work with the AUX cable.

Microphone element

Not available

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

Not available

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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.

Not available

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

Not available

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

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

Not available

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Flip to mute

Not available

Not available

Mute button

Not available

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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.

Not available

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Sidetone

Not available

Not available

Adjustable sidetone

Not available

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

Not available

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Connectivity

7 of 20 differ

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

Bluetooth, Analog19Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026Printed pages 4 and 7 included USB-C-to-3.5 mm cable carries analog source audio. USB-C shape does not imply USB digital playback.

Bluetooth, Analog1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Wired listening page: the provided 3.5 mm AUX cable plays audio from an external device. Bluetooth is the wireless connection. Bluetooth mode and the buttons are disabled in wired listening.

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

3.5 mm TRS41Retailer pagebhphotovideo.com/c/product/1854727-REG/marshall_1006861_monitor_iii_anc_wireless.htmlRead 23 October 2026Exact Black 1006861 overview and supplied-items list explicitly USB-C to 3.5 mm TRS cable. Other B&H specification errors such as open-back enclosure and LC3 are not used.

Not available

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

USB-C19Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026

3.5 mm1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Overview: 3.5 mm Input. Wired listening page: connect the provided 3.5 mm AUX cable.

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

Not available

Not available

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-C19Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026

USB-C1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Overview: USB-C Charging Port. The port is for charging.

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.

No21Reviewchip.de/test-kaufberatung/tv-audio/marshall-monitor-iii-a-n-c-im-test_a4725ea6-a9f4-4e8b-aa22-0f51f8c0d1c3.htmlRead 23 October 2026Independent exact-model table explicitly USB-C-Audio no. Included 3.5 mm-to-USB-C analog cable is a separate path. ifanr exact review independently explicitly rules out USB Audio.

No1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Overview and charging pages list the USB-C port for charging only. Wired audio uses the 3.5 mm input.

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.

No19Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026Printed page 7 requires headphones on before connecting analog cable. HeadphoneCheck and CHIP confirm no passive playback. Tom's Guide claims otherwise, but maker instructions take precedence.

Not available

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

Not available

None3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Package contents list no wireless receiver or dongle. Bluetooth only.

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.

Not available

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.

10m20Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Current maker 10 m / 30 ft claim. Meters retained. Conditions not specified.

15m1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026SPECS table: Bluetooth range 15 m.

Bluetooth

5.320Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026

5.31Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026SPECS table: Bluetooth version 5.3. The 2022 Life Q30 manual and 2024 reviews give Bluetooth 5.0, so the current revision is newer than the first hardware.3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Spec table: Bluetooth 5.3, profiles AVRCP, A2DP, HFP and HSP.

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

SBC, AAC20Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Current maker Codecs SBC, MPEG-2 AAC. AAC stored using common catalog spelling. LE Audio-ready is not confirmed current LC3 support.

SBC, AAC3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Spec table: supported codecs AAC and SBC.

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.

Yes19Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Dual connections page: connect the headphones with two devices at the same time.

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

219Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026Printed page 8 explicitly two connected devices simultaneously.

21Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Dual connections page: two devices at the same time.

Paired devices remembered

819Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026Printed page 8 explicitly remembers eight paired devices.

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.

Not available

Not available

Fast pairing

Not available

Google Fast Pair1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Powering on and pairing page: Google Fast Pair for Android 6.0 or higher.

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

1 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.

Android, iOS22Maker product pagemarshall.com/us/en/support/headphones/learn/app-marshall-bluetoothRead 23 October 2026Maker app page lists exact model and Apple App Store/Google Play downloads. Exact-model setup guide requires pairing host device with headphones. No desktop/console audio path inferred.

Android, iOS1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Pairing page covers Android 6.0+ with Fast Pair and iOS. App page shows Google Play and App Store.

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.

AMarshall Monitor III A.N.C.

Platform	Connection
Android	Bluetooth
iOS	Bluetooth

Source22Maker product pagemarshall.com/us/en/support/headphones/learn/app-marshall-bluetoothRead 23 October 2026Supported mobile setup uses Bluetooth pairing. Per-platform call microphone support is left unspecified.

Bsoundcore Q30

Not available

Official licence

Not available

Not available

Battery and charging

10 of 13 differ

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

Not available

800mAh1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026SPECS table: Battery capacity 800 mAh, input 5 V 0.75 A. Retailer listings of the Upgraded version print 720 mAh, which conflicts. The maker manual is stored.

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.

224Press articlenotebookcheck.com/Marshall-stellt-neue-kabellose-ANC-Kopfhoerer-Monitor-III-A-N-C-vor.890514.0.htmlRead 23 October 2026Exact-model German launch report explicitly a double battery with one pack in each earcup. No per-pack capacity published. No total mAh divided or guessed.

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.

AMarshall Monitor III A.N.C.

Connection	ANC	Hours (h)
Bluetooth	Yes	70
Bluetooth	No	100

Source23Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Current maker battery specification explicitly Bluetooth plus ANC 70 h and Bluetooth only 100 h. Volume, codec, spatial processing and firmware not stated.

Bsoundcore Q30

Connection	ANC	Hours (h)
Bluetooth	Yes	50
Bluetooth	No	80

Source1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026SPECS table: Playtime with ANC on up to 50 hours, with ANC off up to 80 hours. The US store page and Amazon say 70 hours with ANC off. Codec, volume and test conditions are not stated.3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Spec table: normal mode up to 80 hours, noise cancelling mode up to 50 hours. Matches the maker user guide.

Battery life (claimed, max)

100h=CalculatedFrom Claimed battery life

80h=CalculatedFrom Claimed battery life

Battery life with ANC (claimed)

70h=CalculatedFrom Claimed battery life

50h=CalculatedFrom Claimed battery life

Battery life without ANC (claimed)

100h=CalculatedFrom Claimed battery life

80h=CalculatedFrom Claimed battery life

Charging port

USB-C23Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026

USB-C1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Overview: USB-C Charging Port.3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Spec table: charging terminal USB Type-C.

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

150min23Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Maker 2.5 h to full recharge converted exactly to 150 minutes.

120min1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Charging page and SPECS table: a full charge takes about 2 hours.3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Spec table: charging time about 2 hours.

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

15min23Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026

10min1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Charging page: 10 minutes of charging provides up to 10 hours of playtime. The US store page and Amazon still say a 5-minute charge gives 4 hours.

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

12h23Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Maker 15 minutes supplies 12 hours. ANC, codec and volume unspecified.

10h1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Charging page: 10 minutes of charging provides up to 10 hours of playtime. Charger power and mode are not stated.

Use while charging

Not available

No1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Charging page: Do not power on your headphones while charging.

Charging dock or stand

Not available

Not available

Controls

5 of 6 differ

Controls

Buttons25Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026Printed pages 4-5 two buttons and multidirectional control knob. Knob moves by directional pushes, not a rotating dial or wheel. No schema joystick option exists.

Buttons, Touch10Reviewsoundguys.com/anker-soundcore-life-q30-review-109887Read 20 October 2026Control buttons on the bottom of the ear cups. Holding a palm over the right ear cup for one second enables transparency mode.

Volume control

Not available

Buttons10Reviewsoundguys.com/anker-soundcore-life-q30-review-109887Read 20 October 2026Volume up and down buttons on the ear cups.

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.

Yes25Owner's manualdownloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdfRead 23 October 2026Printed page 5 M-button assignment in app. Default Spotify Tap.

No10Reviewsoundguys.com/anker-soundcore-life-q30-review-109887Read 20 October 2026Review of the earlier hardware (Bluetooth 5.0, firmware 03.50, November 2024): you cannot change what each button does.

Wear detection

Yes26Reviewsoundguys.com/marshall-monitor-iii-anc-review-a-worthy-alternative-to-sony-and-bose-131654Read 23 October 2026Controls section explicitly wear sensor and automatic playback pause when removed.

No11Reviewexpertreviews.co.uk/headphones/1413257/anker-soundcore-life-q30-reviewRead 20 October 2026Review of the earlier hardware: wear detection would be a welcome addition, so it is not supported. The current user guide lists no wear detection.

Voice assistant

Phone's voice assistant43Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Customisable M-button activates the phone's voice assistant. Maker names no specific service. It is host activation, separate from the Voice command No row for built-in voice control.

Not available

Comfort and build

4 of 11 differ

Headband type

Not available

Not available

Headband material

Silicone inner headband27Reviewnotebookcheck.com/Exklusiv-zum-Markstart-Marshall-Monitor-III-A-N-C-im-Praxis-Test-Tolles-Design-wie-ist-der-Klang.890386.0.htmlRead 23 October 2026Design section explicitly silicone inner band attached at the sides. Does not establish outer upholstery material.

Not available

Frame material

Not available

Not available

Ear cup material

Plastic27Reviewnotebookcheck.com/Exklusiv-zum-Markstart-Marshall-Monitor-III-A-N-C-im-Praxis-Test-Tolles-Design-wie-ist-der-Klang.890386.0.htmlRead 23 October 2026Design section explicitly flexible plastic cup shell. Decorative leather-like texture is not treated as leather shell.

Plastic10Reviewsoundguys.com/anker-soundcore-life-q30-review-109887Read 20 October 2026Review text: a plastic design keeps the headphones lightweight. Measured results in this review are not stored, because it tested Bluetooth 5.0 hardware with a 40-hour claim.

Ear pad material

Vegan leather and foam28Retailer pageargos.co.uk/product/3347382/GM-VariantRead 23 October 2026Exact Black listing names Vegan Leather and Foam ear pieces. Not interpreted as natural leather.

Protein leather with memory foam padding4Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026Page text: ultra-soft protein leather earcups with memory foam padding.

Replaceable ear pads

Yes29Owner's manualdownloads.ctfassets.net/javen7msabdh/2hCtX2YRHbepO0vP6hwRex/437db6a71a057973414ed7d097217311/Monitor-III-ANC-spareparts_user-manual_all-languages.pdfRead 23 October 2026

Yes6Maker product pageca.soundcore.com/products/a3028011-98Read 20 October 2026Maker Canada store sells Life Q30/Life Tune Ear Cushions as a spare part (SKU A3028013-98).

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.

Twist lock29Owner's manualdownloads.ctfassets.net/javen7msabdh/2hCtX2YRHbepO0vP6hwRex/437db6a71a057973414ed7d097217311/Monitor-III-ANC-spareparts_user-manual_all-languages.pdfRead 23 October 2026Printed page 3 rotate anticlockwise to remove and clockwise to lock.

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.

Not available

Not available

Ear tips included

Not available

Not available

Dust and water rating

Not available

Not available

User-replaceable parts

Ear cushions, Inner headband29Owner's manualdownloads.ctfassets.net/javen7msabdh/2hCtX2YRHbepO0vP6hwRex/437db6a71a057973414ed7d097217311/Monitor-III-ANC-spareparts_user-manual_all-languages.pdfRead 23 October 2026Printed pages 3-5 exact replacement procedures. Inner headband uses T5 Torx screwdriver. Battery is not in this user replacement manual.

Ear pads6Maker product pageca.soundcore.com/products/a3028011-98Read 20 October 2026Ear cushions are sold as a spare part. The product feed lists them at $9.99 CAD.

Software

1 of 3 differ

Companion app

Marshall Bluetooth30Maker product pagemarshall.com/us/en/support/headphones/learn/app-marshall-bluetoothRead 23 October 2026

soundcore1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026App page: download the soundcore app.

App platforms

Android, iOS30Maker product pagemarshall.com/us/en/support/headphones/learn/app-marshall-bluetoothRead 23 October 2026Maker lists exact model with Apple App Store and Google Play links.

Android, iOS1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026App page shows Google Play and App Store badges.

User firmware updates

Yes30Maker product pagemarshall.com/us/en/support/headphones/learn/app-marshall-bluetoothRead 23 October 2026Exact-model support page explicitly app firmware updates.31Maker product pagemarshall.com/us/en/support/headphones/support-for-monitor-iii-ancRead 23 October 2026Update the firmware section explicitly app updates for Monitor III A.N.C.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026Firmware update page: the app notifies of a new firmware version when connected.

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.

250g(8.8 oz)32Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Current maker physical-unit table 250 g. No cable qualification stated. SoundGuys and CHIP measured information stays separate.

260g(9.2 oz)3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Spec table: weight about 260 g.

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

2 of 3 differ

Hi-Res Audio

Not available

Hi-Res Audio3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Notes: Hi-Res support applies only with the AUX cable connected. Stored as Hi-Res Audio, not as wireless.4Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026Page text: Hi-Res Music, and the product image carries the Hi-Res Audio logo.

Communication certifications

Not available

Not available

FCC ID

2BBQK-MONITIII33Regulatory filingfccid.io/2BBQK-MONITIIIRead 23 October 2026Public FCC filing index for exact MONITIII headphone, approved April 29, 2024. Referenced label/internal documents could not be downloaded because of access denial. No hidden exhibit data used.

Not available

Other certifications

Not available

TCO Certified4Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026Page text: TCO Certified.

In the box

2 of 3 differ

In the box

Monitor III A.N.C. Headphones, USB-C charging cable, USB-C to 3.5mm audio cord, Quick start guide, Legal and Safety Information, Carrying case34Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026

Soundcore Life Q30 headphones, 3.5 mm AUX cable, USB-C and USB-A cable, Hard travel case, Quick start guide, Safety manual3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Package contents (translated from Japanese): Life Q30, 3.5 mm AUX cable, USB-C and USB-A cable, hard travel case, quick start guide, safety manual, 18-month warranty.

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

AMarshall Monitor III A.N.C.

Type	Length (m)	Count
USB-C to USB-C charging cable	0.21	1
USB-C to 3.5 mm stereo audio cable	Not available	1

Source34Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Maker box list confirms both cables. Manual page 4 confirms USB-C-to-USB-C charging lead. HeadphoneCheck states 21 cm charging lead. Audio length is omitted because HeadphoneCheck says 120 cm and SoundGuys says 122 cm while maker is silent.35Reviewheadphonecheck.com/test/marshall-monitor-iii-a-n-cRead 23 October 2026Scope of delivery explicitly charging cable 21 cm and analog cable 120 cm. Only uncontested charging length retained. SoundGuys metadata says 122 cm for analog cable.

Bsoundcore Q30

Type	Count
USB-C and USB-A charging cable	1
3.5 mm AUX cable	1

Source3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Package contents list a USB-C and USB-A cable and a 3.5 mm AUX cable. Lengths are not stated.

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

Hard34Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026Maker explicitly hard case, also described in manual page 6.

Hard3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Package contents: hard travel case.

Links

Not compared

Product page

www.marshall.com/us/en/product/monitor-iii-anc36Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026

us.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphones4Maker product pageus.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphonesRead 20 October 2026Maker US store page. The product feed at us.soundcore.com/products/soundcore-q30-bluetooth-noise-cancelling-headphones.json lists the variants.

Spec sheet

www.marshall.com/us/en/product/monitor-iii-anc36Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026

www.ankerjapan.com/products/a30283Maker product pageankerjapan.com/products/a3028Read 20 October 2026Anker Japan product page with the full specification table (Japanese).

Manual

downloads.ctfassets.net/javen7msabdh/Y4lwjaW2ma8v33Kx2ZXCz/d55009139a27c6786e45675a034af6e2/Marshall-Monitor-III-ANC-All-Languages.pdf36Maker product pagemarshall.com/us/en/product/monitor-iii-ancRead 23 October 2026

salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdf1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000018683/en_US/000018683.pdfRead 20 October 2026soundcore Q30 User Guide (A3028), 8 pages, PDF created in August 2025. Soundcore support site lists it as the current guide.

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.

1year37Maker product pagemarshall.com/us/en/support/warrantyRead 23 October 2026US support default warranty one year from purchase. Online Marshall purchases receive an exclusive two-year term. Base field stores default term, separate from legal guarantees.

1.5years3Maker product pageankerjapan.com/products/a3028Read 20 October 2026Package contents: 18-month warranty, plus 6 months after Anker member registration. The base term is stored.5Maker product pageus.soundcore.com/pages/warrantyRead 20 October 2026US warranty page: Headphones, 18 months. A statutory warranty in other markets can be longer.

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