Headsets and headphones / Compare

JBL Quantum 850 vs Turtle Beach Stealth Pro II (Xbox)

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Product A: JBL

Quantum 850

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B

Product B: Turtle Beach

Stealth Pro II (Xbox)

82 of 161 known

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Only differences

AJBL Quantum 850

BTurtle Beach Stealth Pro II (Xbox)

General

6 of 8 differ

Series

Quantum2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Part of the JBL Quantum gaming line, below the Quantum 950.

Stealth Pro1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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

QUANTUM 8501Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: Model Headset QUANTUM 850, Dongle QUANTUM 850 TM. The dongle model is excluded. No orderable SKU code was found.

TBS-2104-051Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Maker structured product offers map TBS-2104-05 to Xbox Black. PC/PlayStation TBS-5105-05 is a different edition. No unsafe PC variant is included.

GTIN / EAN

Not available

8404544007556Retailer pagemicrocenter.com/product/710992/turtle-beach-stealth-pro-ii-xb-blackRead 8 October 2026Mfr Part TBS-2104-05 and UPC 840454400755 identify exact Xbox Black retail package.

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

26 August 20262Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026JBL press release dated 26 August 2026.

16 April 20263Press releasecorp.turtlebeach.com/news/news-details/2026/TURTLE-BEACH-UNVEILS-THE-ALL-NEW-STEALTH-PRO-II-WIRELESS-GAMING-HEADSET----FLAGSHIP-SOUND-COMFORT-AND-FLEXIBILITY--WITHOUT-COMPROMISE-2026-4_w7od5YE-/default.aspxRead 8 October 2026Maker announcement dated April 16, 2026. It names both platform editions.

Status

Available2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Available from 1/10/2026 per the maker. No retailer listing was found, so this follows the maker date.3Press releasenews.jbl.com/en-CEU/268974-jbl-launches-quantum-850-wireless-gaming-headset-with-spatial-sound-head-tracking-and-adaptive-noise-cancellingRead 14 October 2026Same availability statement.6Reviewspacekings.de/2026/10/09/jbl-quantum-850-test-reviewRead 14 October 2026Review published 2026-10-09 with an RRP of 279.99 EUR.

Available1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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

$349.993Press releasecorp.turtlebeach.com/news/news-details/2026/TURTLE-BEACH-UNVEILS-THE-ALL-NEW-STEALTH-PRO-II-WIRELESS-GAMING-HEADSET----FLAGSHIP-SOUND-COMFORT-AND-FLEXIBILITY--WITHOUT-COMPROMISE-2026-4_w7od5YE-/default.aspxRead 8 October 2026Announcement gives MSRP $349.99 for both Xbox and PC editions. US launch price excluding sales tax, separate from current discounts.

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.

€279.992Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026UK release price 279.99 EUR alongside 249.99 GBP. The EU release gives 279.99 EUR. JBL EU prices include VAT.3Press releasenews.jbl.com/en-CEU/268974-jbl-launches-quantum-850-wireless-gaming-headset-with-spatial-sound-head-tracking-and-adaptive-noise-cancellingRead 14 October 2026Available for 279.99 EUR. Central Europe release.8Press articlegadgetbond.com/jbl-quantum-850-gaming-headset-launchRead 14 October 2026Priced at 249.99 GBP / 279.99 EUR.

€349.993Press releasecorp.turtlebeach.com/news/news-details/2026/TURTLE-BEACH-UNVEILS-THE-ALL-NEW-STEALTH-PRO-II-WIRELESS-GAMING-HEADSET----FLAGSHIP-SOUND-COMFORT-AND-FLEXIBILITY--WITHOUT-COMPROMISE-2026-4_w7od5YE-/default.aspxRead 8 October 2026Announcement gives European retail MSRP EUR 349.99 for both editions, as published. Exact Xbox TBS-2104-05 is also sold with the same UPC in EU retail. Euro launch price includes VAT as published.

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

Not available

US6Retailer pagemicrocenter.com/product/710992/turtle-beach-stealth-pro-ii-xb-blackRead 8 October 2026

ColoursiThe maker's own colour names

Not available

Black1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Segment

Gaming2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026A premium gaming headset in the JBL Quantum gaming line.

Gaming1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Design

3 of 7 differ

Form factor

Over-ear2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Ear cushions and an ear cup design over the ear. Geektopia calls it circumaural.5Spec databasegeektopia.es/es/product/jbl/quantum-850-wirelessRead 14 October 2026Circumaural is over-ear.

Over-ear1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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

Closed4Press articlehifi.blog/jbl-quantum-850-spatial-precision-without-the-base-stationRead 14 October 2026Not stated. Closed enclosure comes from Geektopia.5Spec databasegeektopia.es/es/product/jbl/quantum-850-wirelessRead 14 October 2026Tipo: circumaurales cerrados, which is closed circumaural.

Closed4Reviewtomshardware.com/peripherals/gaming-headsets/turtle-beach-stealth-pro-ii-reviewRead 8 October 2026Audio Performance describes this model as a closed-back gaming headset.

Wearing style

Headband2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Headband with sliding arm.

Headband1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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

Not available

Flat1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Premium Design states aluminum-reinforced lay-flat design. Tom's Hardware confirms 90-degree cup swivel. No inward fold is claimed.

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

Not available

Yes1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

RGB lighting

Not available

No4Reviewtomshardware.com/peripherals/gaming-headsets/turtle-beach-stealth-pro-ii-reviewRead 8 October 2026Specs table: Lighting None. Status LEDs are separate from decorative RGB.

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

Not available

Not available

Drivers and sound

12 of 20 differ

Driver type

Dynamic1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: Driver size 50 mm Dynamic Driver.

Dynamic4Reviewtomshardware.com/peripherals/gaming-headsets/turtle-beach-stealth-pro-ii-reviewRead 8 October 2026Audio Performance explicitly calls Eclipse dual drivers dynamic.

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

50mm1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 20262Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 202650mm Carbon Dynamic Drivers.

60mm1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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

15Spec databasegeektopia.es/es/product/jbl/quantum-850-wirelessRead 14 October 2026Spacekings is the source for one driver per cup.6Reviewspacekings.de/2026/10/09/jbl-quantum-850-test-reviewRead 14 October 2026Review: two dynamic 50 mm carbon drivers in total, which is one per ear cup.

21Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 202660 mm Eclipse dual drivers have separate woofer and tweeter sections per ear cup. This is two sound-producing drivers per side, not two total for stereo.12Reviewtomsguide.com/gaming/gaming-peripherals/turtle-beach-stealth-pro-ii-reviewRead 8 October 2026Excellent sound quality section explicitly says 60 mm woofer and separate tweeter in each ear cup. Its erroneous 40-hour combined battery summary and dongle/BT multipoint conflation are not used.

Diaphragm material

Not available

Not available

Magnet

Not available

Not available

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 HzMax40 kHz1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: 20 Hz - 40 kHz (USB Audio). Stored as the wired USB range. No other connection range is given.

Min10 HzMax40 kHz1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Single published speaker acoustic range 10 Hz to 40 kHz. No connection-specific transmission band is inferred.

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.

32Ω1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: Impedance 32 ohm.

Not available

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.

100dB1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: Sensitivity 100 dB SPL @1 kHz / 1 mW. Maximum SPL 95 dB is a separate figure.

Not available

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

Per 1 mW1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026The reference is 1 mW as printed.

Not available

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

Not available

Not available

Max input power

30mW1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: Max input power 30 mW.

Not available

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

96kHz1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Certified High Resolution Wireless Audio explicitly gives 24-bit/96 kHz over the 2.4 GHz USB receiver path on compatible PC/system output. Xbox and PlayStation are limited to 16-bit/48 kHz. This is not a Bluetooth guarantee.

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

Not available

24bits1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Same compatible-system 2.4 GHz playback claim. It is distinct from microphone sampling.

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.

Not available

Yes8Reviewmkaugaming.com/all-review-list/turtle-beach-stealth-pro-ii-review-the-550-heavyweightRead 8 October 2026Xbox Edition review, tested Xbox Series X, Windows 11 and Pixel 10 Pro Fold. Software section explicitly says settings save to the headset and EQ carried from phone to Xbox without a background app.

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

Not available

108Reviewmkaugaming.com/all-review-list/turtle-beach-stealth-pro-ii-review-the-550-heavyweightRead 8 October 2026Software section explicitly identifies 10-band custom playback EQ. Microphone EQ is separate.

EQ presets

Not available

Bass Boost, Signature Sound, Treble Boost, Vocal Boost1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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.

JBL Quantum Spatial Sound1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Page 2 and the calibration microphone page name JBL Quantum Spatial Sound.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026JBL Quantum Spatial Sound with Head Tracking.

Dolby Atmos1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Dolby Atmos on Xbox and PC. An included paid licence is not established by this support claim.

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

Not available

Not available

Head tracking

Yes2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026JBL Quantum Spatial Sound with Head Tracking, powered by JBL QuantumENGINE.

Not available

Noise cancelling

4 of 10 differ

Active noise cancelling

Yes1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Overview item 02: ANC/Ambient Aware On/Off.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Hi-Res certified 50mm carbon dynamic drivers with Adaptive Noise Cancelling.

Yes1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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

41Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Four microphones explicitly used for ANC. Additional voice microphones are not counted here.

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

Yes2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026The maker names the feature Adaptive Noise Cancelling. No further detail is given.

Not available

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

Not available

Not available

ANC attenuation (claimed)

Not available

25dB1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Advanced Active Noise Cancellation states up to 25 dB. Frequency and measurement method are not published. This is a maker claim, not independent measurement.

Transparency mode

Yes1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Overview item 02: ANC/Ambient Aware On/Off.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Ambient Aware is named on the ear cup button in the quick start guide. The release does not describe it.

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

2 of 21 differ

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

Not available

Warm tuning with narrow treble peaks and dips. Wired and wireless frequency response stays similar.5Measurementrtings.com/headphones/reviews/turtle-beach/stealth-pro-iiRead 8 October 2026Public Audio Reproduction Accuracy paragraph. Exact Black Xbox sample documented in Differences Between Sizes And Variants, Methodology 2.3. Numeric scores and test settings are locked, so no protected data or inferred values are used.

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

Not available

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

Not available

Not available

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

Not available

Boom microphone over the dongle with AI Noise Reduction keeps speech intelligible against loud steady background noise.5Measurementrtings.com/headphones/reviews/turtle-beach/stealth-pro-iiRead 8 October 2026Public Microphone verdict. Exact Black Xbox sample, boom mic, dongle, AI Noise Reduction enabled. Test Bench 2.3. Firmware and numeric speech-to-noise results are unavailable.

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.

Not available

Not available

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

Not available

Not available

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

Not available

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.

Not available

Not available

Microphone

8 of 16 differ

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

Detachable boom1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Overview and box: Detachable boom microphone with an audio jack for the boom microphone.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026New 6mm unidirectional boom microphone. The key features list says 6mm cardioid noise-cancelling boom microphone.

Detachable boom1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Microphone element

Not available

Not available

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

Cardioid1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: Microphone pickup pattern Cardioid. The maker press release also calls it unidirectional.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026

Unidirectional1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Maker says uni-directional. Cardioid or other narrower pattern is not inferred.

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.

Min100Max8,000Hz1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: Microphone frequency response 100 Hz - 8 kHz.

Min100 HzMax16 kHz1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Technical Specifications Microphone Frequency: 100 Hz to 16 kHz. Digital sampling rate is separate. PC edition 32 kHz sampling is not stored for Xbox.

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

-44dB1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: -44 dBV/Pa @1 kHz.

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.

AI2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Key features: JBL QuantumENGINE customisation including AI keyboard noise reduction. This is a software feature.

AI1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Flip to mute

Not available

Yes1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Mute button

Yes1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Overview item 05: Microphone mute/unmute.

No2Owner's manualcdn.turtlebeach.com/device/qig/stealth-pro-ii/stealth-pro-ii_390-6319-v1.pdfRead 8 October 2026Complete Xbox control map has no dedicated mute button. Boom mic flips to mute. Mode button and mix wheel are remappable, so this is default supplied control mapping.

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

Not available

Sidetone

Not available

Yes8Reviewmkaugaming.com/all-review-list/turtle-beach-stealth-pro-ii-review-the-550-heavyweightRead 8 October 2026Reviewer tested microphone monitoring on the exact Xbox edition. It is quiet by default.

Adjustable sidetone

Not available

Yes8Reviewmkaugaming.com/all-review-list/turtle-beach-stealth-pro-ii-review-the-550-heavyweightRead 8 October 2026Mic-monitor slider is adjustable in Swarm II. Review describes increasing it beyond 85 percent.

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

Yes1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Box contents: Windshield foam for boom microphone.

Not available

Connectivity

7 of 20 differ

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

Analog, USB, 2.4 GHz, Bluetooth1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 20262.4 GHz wireless, Bluetooth, USB audio and a USB-C to AUX cable for analog.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Dual wireless: 2.4GHz USB-C wireless dongle and Bluetooth 5.3. USB-C and 3.5mm wired connectivity.

USB, 2.4 GHz, Bluetooth1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Product headline explicitly supports wired high-resolution audio. Exact Xbox QSG confirms USB-C PC audio playback. 2.4 GHz and simultaneous Bluetooth are explicit.

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

Not available

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-C1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Both included cables are USB-C cables at the headset. The AUX cable is USB-C to AUX.

Not available

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

Not available

2m1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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-C1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026USB-C port on the headset. Cables are listed as USB-C.

USB-C1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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.

Yes1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026The guide has a USB AUDIO page with PC, Mac, Nintendo Switch, Mobile and PlayStation.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026USB-C wired connection with Hi-Res certified audio.

Yes1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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.

Not available

No5Measurementrtings.com/headphones/reviews/turtle-beach/stealth-pro-iiRead 8 October 2026Public Travel verdict explicitly states there is no 3.5 mm input. Exact Xbox QSG only documents active USB-C playback, not passive analog.

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

Included1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Box contents: USB wireless dongle.

Included1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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-C1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026The dongle is a USB-C dongle per the maker press release. A USB-C to USB-A converter is included.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 20262.4GHz USB-C wireless dongle.

USB-A11Reviewtomshardware.com/peripherals/gaming-headsets/turtle-beach-stealth-pro-ii-reviewRead 8 October 2026In the Box explicitly includes wireless USB-A transmitter. Charging/transmitter dock has USB-C cable input, but the standalone supplied receiver has native USB-A. Cable adapters do not make it Both.

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

5.31Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: Bluetooth version V5.3. Profiles A2DP V1.4.1, HFP V1.8, AVRCP V1.6.3. Codecs are not named. Channel News writes Bluetooth 5.2, which the maker does not.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Bluetooth 5.3.

5.31Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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

Not available

LDAC10Reviewrtings.com/headphones/reviews/turtle-beach/stealth-pro-iiRead 8 October 2026Differences section explicitly identifies tested Black Xbox sample. Public comparisons explicitly state LDAC for higher-quality Bluetooth streaming. Maker FAQ distinguishes PC-edition 24-bit/96kHz Hi-Res Bluetooth, without naming Xbox codecs. Exact firmware is locked. No Xbox 24-bit/96kHz Bluetooth capability, launch-time LDAC or LC3plus Bluetooth support is inferred.

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.

Yes2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Dual wireless connectivity allows simultaneous connection through the 2.4GHz dongle and Bluetooth 5.3.

Yes1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Fast pairing

Not available

Not available

Base station

Not available

CrossPlay 2.0 transmitter dock with spare-battery charging slot2Owner's manualcdn.turtlebeach.com/device/qig/stealth-pro-ii/stealth-pro-ii_390-6319-v1.pdfRead 8 October 2026CrossPlay 2.0 connects up to four receiver sources with switching. The supplied dock plus one USB-A transmitter provide two receiver sources. Additional transmitters are sold separately.

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

3 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, PS5, iOS, Android, Nintendo Switch1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Same pages. Nintendo Switch is the name printed. The press release adds iPadOS and Zoom.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Windows PC, macOS, iOS, iPadOS, Android, Playstation and Nintendo, Zoom Certified. Xbox is not listed.9Press articletrustedreviews.com/news/jbl-unveils-quantum-850-and-new-mid-range-headsets-at-gamescomRead 14 October 2026Compatible with iPad OS, PlayStation and Nintendo certified. Xbox certification is only on the 520X.

Xbox Series X|S, Xbox One, PS5, PS4, Windows, Android, iOS1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Exact Xbox model maker platform list plus named iOS and Android app/mobile support. Platform routes are separately documented. No Nintendo or Mac support is inferred.

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.

AJBL Quantum 850

Platform	Connection
Windows	2.4 GHz
Windows	USB
macOS	2.4 GHz
macOS	USB
PS5	2.4 GHz
PS5	USB
Nintendo Switch	2.4 GHz
Nintendo Switch	USB
Android	2.4 GHz
Android	USB
iOS	2.4 GHz
iOS	USB

Source1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Pages 6 and 8 show 2.4 GHz and USB audio for PC, Mac, Nintendo Switch, Mobile and PlayStation. Mobile is stored as Android and iOS, as the press release names both. The guide says PlayStation without a console generation. PS5 is stored as the current console and PS4 is not stored.

BTurtle Beach Stealth Pro II (Xbox)

Platform	Connection
Xbox Series X|S	2.4 GHz
Xbox One	2.4 GHz
PS5	2.4 GHz
PS4	2.4 GHz
Windows	2.4 GHz
Windows	USB
Android	Bluetooth
iOS	Bluetooth

Source2Owner's manualcdn.turtlebeach.com/device/qig/stealth-pro-ii/stealth-pro-ii_390-6319-v1.pdfRead 8 October 2026Xbox setup uses dock Xbox switch and USB host cable for the 2.4 GHz link. Optional included dongle plugs into PC/PlayStation. USB-C port explicitly carries PC audio. Phone call controls are documented over Bluetooth. Mobile OS and PS4/5 compatibility are confirmed on maker page. Unknown mic support cells remain omitted.

Official licence

Not available

Xbox Series X|S, Xbox One1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Battery and charging

9 of 13 differ

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

700mAh1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: Lithium-ion battery (3.7 V / 700 mAh).

Not available

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

Yes1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Overview item 10 Replaceable battery. A footnote says the battery is replaceable only with an original JBL battery.

Yes1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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

11Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026One replaceable battery is in the box.7Press articlehifi.fan/stories/jbl-quantum-850-wireless-gaming-headset-with-50mm-carbon-drivers-releasedRead 14 October 2026The retail package includes the 700mAh battery.

21Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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.

AJBL Quantum 850

Connection	Hours (h)
2.4 GHz	25
Bluetooth	30

Source1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: music play time up to 25 hrs with only 2.4GHz on, up to 30 hrs with only BT on, up to 22 hrs with BT and 2.4GHz both on. The dual wireless row has no matching connection option and is not stored. ANC state for music play is not stated. Talk time with ANC is up to 18 hrs (2.4GHz), 20 hrs (BT) and 17 hrs (both). Talk time is not stored as playback.4Press articlehifi.blog/jbl-quantum-850-spatial-precision-without-the-base-stationRead 14 October 2026Up to 30 hours via Bluetooth and up to 25 hours via 2.4 GHz, same as the quick start guide.

BTurtle Beach Stealth Pro II (Xbox)

Hours (h)
40

Source1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Two packs rated up to 40 hours EACH. Stored 40 hours per one active headset battery, not 80 hours combined. ANC, connection, volume and codec conditions are not stated.

Battery life (claimed, max)

30h=CalculatedFrom Claimed battery life

40h=CalculatedFrom Claimed battery life

Battery life with ANC (claimed)

Not available

Not available

Battery life without ANC (claimed)

Not available

Not available

Charging port

USB-C1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: power supply 5V 1A. The USB-C port is item 07 in the overview.

USB-C1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026USB-C on the headset. The included dock charges the spare removable pack separately.

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

180min1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: Charging time < 3 hrs from empty. Stored as 180 minutes. The real time is under that.4Press articlehifi.blog/jbl-quantum-850-spatial-precision-without-the-base-stationRead 14 October 2026Less than three hours for a complete charge.

Not available

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

10min1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Charging diagram: 10 MIN gives 2 H.7Press articlehifi.fan/stories/jbl-quantum-850-wireless-gaming-headset-with-50mm-carbon-drivers-releasedRead 14 October 2026A 10-minute quick charge provides up to two hours of use.

Not available

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

2h1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Same diagram. hifi.blog states ten minutes gives up to two additional hours of playback.4Press articlehifi.blog/jbl-quantum-850-spatial-precision-without-the-base-stationRead 14 October 2026Ten minutes connected gives up to two additional hours.7Press articlehifi.fan/stories/jbl-quantum-850-wireless-gaming-headset-with-50mm-carbon-drivers-releasedRead 14 October 2026Same sentence.

Not available

Use while charging

Not available

Yes5Measurementrtings.com/headphones/reviews/turtle-beach/stealth-pro-iiRead 8 October 2026Wired Gaming public verdict says active battery charges while wired and in use.7Maker product pageuk.turtlebeach.com/blog/how-long-should-gaming-headset-battery-lastRead 8 October 2026Maker battery-life guide states Turtle Beach wireless headsets support play-while-charging via USB-C, and its table explicitly includes Stealth Pro II. Independently confirmed on exact Black Xbox RTINGS sample.

Charging dock or stand

None2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026The Quantum 950 features the added Base Station. The 850 has none. TechNetBooks says the 850 has a dock, which the maker release contradicts.4Press articlehifi.blog/jbl-quantum-850-spatial-precision-without-the-base-stationRead 14 October 2026The 850 dispenses with the flagship's separate base station.

Included1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Controls

3 of 6 differ

Controls

Buttons, Chat mix wheel1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Overview: ANC/Ambient Aware button, microphone mute button, power button, spatial sound button, 2.4 GHz pairing button and the game audio-chat balance dial. The volume control type is not clear from the drawing and is not stored.

Buttons, Volume wheel, Chat mix wheel2Owner's manualcdn.turtlebeach.com/device/qig/stealth-pro-ii/stealth-pro-ii_390-6319-v1.pdfRead 8 October 2026

Volume control

Not available

Wheel2Owner's manualcdn.turtlebeach.com/device/qig/stealth-pro-ii/stealth-pro-ii_390-6319-v1.pdfRead 8 October 2026

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.

Hardware dial1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Overview item 11: Game audio-chat balance dial. The platforms it works on are not stated.

Hardware dial2Owner's manualcdn.turtlebeach.com/device/qig/stealth-pro-ii/stealth-pro-ii_390-6319-v1.pdfRead 8 October 2026Controls page labels Game/Chat Mix wheel. Exact maker FAQ restricts Xbox-edition game/chat balance to Xbox. PC game/chat firmware additions were searched but not established from an accessible exact maker changelog.

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

Not available

Yes1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Wear detection

Not available

Not available

Voice assistant

Not available

Not available

Comfort and build

6 of 11 differ

Headband type

Suspension strap2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Ultra-light air mesh hammock suspension system.

Suspension strap3Press releasecorp.turtlebeach.com/news/news-details/2026/TURTLE-BEACH-UNVEILS-THE-ALL-NEW-STEALTH-PRO-II-WIRELESS-GAMING-HEADSET----FLAGSHIP-SOUND-COMFORT-AND-FLEXIBILITY--WITHOUT-COMPROMISE-2026-4_w7od5YE-/default.aspxRead 8 October 2026Announcement explicitly says mesh fabric suspension headband.

Headband material

Air mesh hammock2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Air mesh hammock suspension.

Mesh fabric3Press releasecorp.turtlebeach.com/news/news-details/2026/TURTLE-BEACH-UNVEILS-THE-ALL-NEW-STEALTH-PRO-II-WIRELESS-GAMING-HEADSET----FLAGSHIP-SOUND-COMFORT-AND-FLEXIBILITY--WITHOUT-COMPROMISE-2026-4_w7od5YE-/default.aspxRead 8 October 2026

Frame material

Not available

Anodized aluminum1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Ear cup material

Not available

Soft-touch plastic with metal speaker plates4Reviewtomshardware.com/peripherals/gaming-headsets/turtle-beach-stealth-pro-ii-reviewRead 8 October 2026Design and Comfort explicitly states plastic earcups and machined metal plates.

Ear pad material

Memory foam with synthetic leather (leatherette) cover2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Soft leatherette ear cushions.4Press articlehifi.blog/jbl-quantum-850-spatial-precision-without-the-base-stationRead 14 October 2026Memory-foam ear cushions with a synthetic-leather covering.6Reviewspacekings.de/2026/10/09/jbl-quantum-850-test-reviewRead 14 October 2026Ear pads are memory foam.

Athletic weave fabric and memory foam1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Replaceable ear pads

Yes1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Press release lists ear cushions as replaceable.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Ear cushions are replaceable.

Not available

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.

Not available

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

Boom microphone, USB-C cable, Ear cushions, Earcaps, Headband hammock, Battery1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Overview items: replaceable battery and replaceable headset cap. The full list is from the maker press release.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Replaceable system: microphone, USB-C cable, ear cushions, earcaps, hammock and battery pack.

Battery packs, Detachable boom microphone2Owner's manualcdn.turtlebeach.com/device/qig/stealth-pro-ii/stealth-pro-ii_390-6319-v1.pdfRead 8 October 2026QSG describes replacing the battery beneath the magnetic outer plate and detachable boom mic. Decorative speaker plate is not an ear pad.

Software

3 of 3 differ

Companion app

JBL QuantumENGINE (PC) and JBL Quantum App (mobile)1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Download JBL QuantumENGINE, or the JBL Quantum App.2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026JBL QuantumENGINE.

Turtle Beach Swarm II1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

App platforms

Windows, macOS, Android, iOS1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026The page shows Windows and Apple logos for QuantumENGINE and Google Play and App Store badges for the Quantum App.

Windows, iOS, Android1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

User firmware updates

Not available

Yes1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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.

349.7g(12.3 oz)1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Tech spec: Weight 364.2 g (included talk mic 14.5 g and battery 16.4 g). Stored 349.7 g, which is 364.2 g minus the 14.5 g detachable microphone, battery included. The figure on the maker page is 364.2 g.4Press articlehifi.blog/jbl-quantum-850-spatial-precision-without-the-base-stationRead 14 October 2026364.2 g including its microphone and battery.

382g(13.5 oz)1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Technical Specifications explicitly distinguishes 382 g without detachable boom microphone from 393 g with it attached.

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

Hi-Res Audio2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Hi-Res certified. The maker links the certification to wired USB-C and 3.5mm use.

Hi-Res Audio Wireless1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Japan Audio Society certified Hi-Res Audio Wireless, explicitly stated. The general wired high-resolution claim does not prove a separate wired certification.

Communication certifications

Zoom Certified2Press releasenews.jbl.com/en-GB/269556-jbl-quantum-850-competitive-audio-without-compromiseRead 14 October 2026Zoom Certified.

Not available

FCC ID

Not available

Not available

Other certifications

Not available

Not available

In the box

3 of 3 differ

In the box

JBL Quantum 850 Wireless, USB-C cable, USB-C to AUX cable, USB wireless dongle, USB-C to USB-A converter, Calibration microphone, Detachable boom microphone, Windshield foam for boom microphone, Replaceable battery, Pouch, Quick start guide, Warranty card, Safety sheet1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026What's in the box page.

Stealth Pro II for Xbox headset, Detachable boom microphone, CrossPlay transmitter dock, 2 rechargeable batteries, USB wireless transmitter, USB-A to USB-C cable, Hard-shell storage case2Owner's manualcdn.turtlebeach.com/device/qig/stealth-pro-ii/stealth-pro-ii_390-6319-v1.pdfRead 8 October 2026Package Contents page names this exact Xbox package. QSG lists two batteries total, including installed pack.

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

AJBL Quantum 850

Type	Count
USB-C cable	1
USB-C to AUX cable	1

Source1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026The guide shows both cables without a length.

BTurtle Beach Stealth Pro II (Xbox)

Type	Length (m)	Count
USB-A to USB-C charging and transmitter cable	2	1

Source1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

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

Soft1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Box contents: Pouch.

Hard1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Links

Not compared

Product page

Not available

www.turtlebeach.com/products/stealth-pro-ii-headset1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026

Spec sheet

Not available

www.turtlebeach.com/products/stealth-pro-ii-headset1Maker product pageturtlebeach.com/products/stealth-pro-ii-headsetRead 8 October 2026Technical Specifications section of this exact maker product page. No separate maker datasheet PDF was found.

Manual

www.mediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdf1Owner's manualmediaexpert.pl/products/files/13/13811540/Instrukcja-obsalugi-JBL-Quantum-850.pdfRead 14 October 2026Quick start guide, 40 pages in many languages. The maker site could not be read, so this copy hosted by a retailer is cited.

cdn.turtlebeach.com/device/qig/stealth-pro-ii/stealth-pro-ii_390-6319-v1.pdf2Owner's manualcdn.turtlebeach.com/device/qig/stealth-pro-ii/stealth-pro-ii_390-6319-v1.pdfRead 8 October 2026STEALTH PRO II for XBOX QSG. Exact Xbox edition, not a PC model 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.

Not available

1year9Maker product pagesupport.turtlebeach.com/articles/en_US/Knowledge/218942167-Warranty-and-End-User-LicenseRead 8 October 2026LIMITED USA & CANADA WARRANTY: new retail Turtle Beach hardware one year. Stealth Pro II is not the separate Elite headset family named in the two-year exception. US TBS-2104-05 reference. Statutory rights and retailer plans excluded.

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