Wireless speakers / Compare

Marshall Willen II vs Tribit StormBox Micro 3

A

Product A: Marshall

Willen II

45 of 96 known

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B

Product B: Tribit

StormBox Micro 3

54 of 96 known

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All 96 fields

Every value links to where we found it.

Only differences

AMarshall Willen II

BTribit StormBox Micro 3

General

6 of 8 differ

Series

Willen1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Marshall names the speaker Willen II, the second Willen generation.

StormBox1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Exact StormBox Micro 3 product in the current US/USD storefront.

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

10067141Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Item number 1006714 is the pid of the Black and Brass selection on this page. The Cream colour has its own item number, which is not stored.

BTS36, E36-1935N-011Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Selected Black variant 50573009748215 has maker SKU E36-1935N-01. BTS36 is the hardware model in its linked maker booklet. Shopify logistics weight 708 is not product mass and is not used.2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 12 explicitly names radio equipment type Portable Wireless Speaker BTS36. It is not the previous Micro 2 BTS12.

GTIN / EAN

Not available

Not available

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

19 August 20243Press articlewhathifi.com/news/rock-on-marshalls-third-gen-portable-speakers-are-here-to-rock-your-world-wherever-you-goRead 13 October 2026Article published 19 August 2024 announces the speaker.

Not available

Status

Available1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Maker sells the speaker with an Add to Bag button at USD 129.99 on the accessed date.

Available1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026The selected Black offer is available to purchase.

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.

$1193Press articlewhathifi.com/news/rock-on-marshalls-third-gen-portable-speakers-are-here-to-rock-your-world-wherever-you-goRead 13 October 2026Launch price listed as USD 119 for the Willen II.

$64.993Maker product pageeu.tribit.com/blogs/news/stormbox-micro-3-is-here-to-change-how-you-rideRead 8 October 2026Maker launch article explicitly states $64.99 US for the new Micro 3. Current US Black reference matches that named launch model. US tax treatment is not separately stated in the article.

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.

€1193Press articlewhathifi.com/news/rock-on-marshalls-third-gen-portable-speakers-are-here-to-rock-your-world-wherever-you-goRead 13 October 2026Launch price listed as EUR 119. European prices include VAT.

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, EU3Press articlewhathifi.com/news/rock-on-marshalls-third-gen-portable-speakers-are-here-to-rock-your-world-wherever-you-goRead 13 October 2026Prices evidenced for the US and Europe. The article also gives GBP 99 and AUD 199.

US1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Current storefront explicitly identifies United States / USD, and the Black offer is available.

ColoursiThe maker's own colour names

Black and Brass, Cream1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Colorways table lists Black and Brass and Cream.

Black1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Only the selected Black reference is represented. Other current color SKUs are not added as variants.

Speaker typeiHome covers speakers made to stay in one place, including smart speakers. A speaker with Wi-Fi or a voice assistant can be of any type.

Portable1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Maker calls it a portable speaker.

Portable1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Maker describes a portable speaker with integral strap and magnet.

Audio

10 of 18 differ

Audio channelsiSound channels reproduced by one speaker. Pairing two speakers for stereo is separate.

Mono1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Stereo/mono row says Mono.

Mono4Reviewtechradar.com/audio/wireless-bluetooth-speakers/tribit-stormbox-micro-3-reviewRead 8 October 2026Actual Micro 3 review says a single speaker downmixes audio to mono. Two identical Micro 3 units provide stereo. No compatibility with Micro 2.

Audio driversiPowered audio transducers in one speaker. Passive radiators are counted separately. Circular diameter and rectangular width and height have separate columns. Per-driver power must state continuous or RMS basis and battery or mains operation in the source note.

AMarshall Willen II

Driver type	Count	Diameter (mm)
Full-range driver	1	50.8

Source1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Audio specification says one 2 inch 10 W full range driver. The 2 inch size is converted exactly to 50.8 mm. The rating basis is not stated, so no per-driver rated power is stored.

BTribit StormBox Micro 3

Driver type	Count	Diameter (mm)
Full-range dynamic NdFeB driver	1	48

Source1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Key Features names a 48 mm NdFeB driver. Its full-range role, dynamic type and single-driver count are also explicit in the actual TechRadar review. Per-driver power is unstated.4Reviewtechradar.com/audio/wireless-bluetooth-speakers/tribit-stormbox-micro-3-reviewRead 8 October 2026Actual review specifies one 48 mm dynamic full-range driver and two passive radiators.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

21Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Audio specification says 2 passive radiators.

23Maker product pageeu.tribit.com/blogs/news/stormbox-micro-3-is-here-to-change-how-you-rideRead 8 October 2026Maker explicitly identifies dual coaxial passive radiators, separate from the single powered driver.

Rated audio poweriMaker-published total rated continuous audio output. Battery power is used for portable speakers when mains and battery ratings differ. Peak marketing power is separate.

Not available

13W3Maker product pageeu.tribit.com/blogs/news/stormbox-micro-3-is-here-to-change-how-you-rideRead 8 October 2026Maker launch article explicitly calls 13 W the sustained working power. Store as sustained total audio output, not peak output. RMS method and separate external-power rating are not published. The portable battery model is the subject of this claim.

Rated audio power on mainsiTotal rated continuous audio output with external power. Store a separate battery rating when the maker publishes both.

Not available

Not available

Audio output power (unspecified rating)iMaker- or reviewer-published audio output power whose continuous or peak rating basis is not stated. This is separate from rated continuous output and explicitly published peak output.

10W1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026The 10 W figure belongs to the single full range driver and its rating basis is not stated. The page also lists a 38 W Class D amplifier, which is an amplifier rating and is not stored as audio output.

Not available

Peak audio poweriExplicitly published peak audio output. Never substitute for rated continuous output.

Not available

Not available

Frequency response lower limit (claimed)iPublished acoustic frequency response limit. Tolerance and operating mode belong in the source note. The Bluetooth transmission range that some spec tables and retailers label Frequency Response, such as A2DP 20 to 20,000 Hz, is not stored.

75Hz1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Frequency range 75 to 20,000 Hz. Tolerance is not stated. The 88 dB SPL at 1 m maker claim is not entered as a measurement.

63Hz2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 10 specifies frequency response 63 Hz to 20 kHz. Tolerance, stimulus and playback level are not published. This is a maker claim, not a measured extension.

Frequency response upper limit (claimed)iPublished acoustic frequency response limit. Tolerance and operating mode belong in the source note. The Bluetooth transmission range that some spec tables and retailers label Frequency Response, such as A2DP 20 to 20,000 Hz, is not stored.

20kHz1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Frequency range 75 to 20,000 Hz. Tolerance is not stated.

20kHz2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 10 specifies 63 Hz to 20 kHz frequency response, with no published tolerance.

Signal-to-noise ratio (claimed)

Not available

Not available

Adjustable equalizeriUser-adjustable frequency bands. Selecting fixed sound presets alone does not qualify.

No4Reviewdigit.in/reviews/audio-video/marshall-willen-ii-review-a-small-package-that-packs-a-punch.htmlRead 13 October 2026Review says the Marshall app has three presets and no custom EQ. Presets alone do not qualify as an adjustable equalizer.

Yes1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026User-adjustable nine-band EQ is separate from six presets.

Equalizer bandsiNumber of user-adjustable frequency bands. Do not count sound presets.

Not available

91Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026App-Controlled Sound Evolution specifies nine user-adjustable bands.

Automatic sound adjustmentiAdjusts audio to placement or playback conditions. Keep the named feature and conditions in the source note.

Not available

Not available

Sound modesiNamed playback modes. Battery extension modes are also qualified in battery source notes.

Marshall, Push, Voice4Reviewdigit.in/reviews/audio-video/marshall-willen-ii-review-a-small-package-that-packs-a-punch.htmlRead 13 October 2026Review names the app presets Marshall (default), Push and Voice.

Tribit Signature, Outdoor, Rap, XBass5Reviewstereoguide.com/bluetooth-speakers/mobile-outdoor/review-tribit-stormbox-micro-3Read 8 October 2026Actual reviewer identifies Tribit Signature, Outdoor, Rap and XBass presets. Only these verified names are stored, not invented names to reach the maker total of six.

Wireless stereo pairingiTwo compatible speakers can play separate left and right channels.

Not available

Yes1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026TWS FAQ explicitly separates left and right channels across two identical Micro 3 units. Other Tribit models are incompatible.

Speaker link protocolsiNamed systems for linking compatible speakers, such as PartyBoost, Auracast or Party Connect. Linking support does not establish compatibility across all models.

Not available

TWS Stereo Mode, Party Mode1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Maker FAQ names TWS Stereo and Party Mode. Party Mode synchronizes the same audio on both units, while Stereo Mode separates left/right channels.

Max linked speakersiPublished maximum in a speaker group. A stereo pair is recorded separately. A figure such as 100+ is stored as 100.

Not available

21Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026The documented TWS Stereo and Party groups contain two Micro 3 speakers. The manual provides Speaker A and Speaker B procedures. This is a speaker group count, not a count of Bluetooth source devices.

Max Bluetooth group speakersiPublished maximum speakers in one Bluetooth playback group, including the first speaker. Source notes name the compatible models or families, linking system and firmware requirements. Wi-Fi groups and concurrent Bluetooth source devices are excluded. A stereo pair alone does not establish the maximum when other Bluetooth linking systems are supported. A figure such as 100+ is stored as 100.

Not available

Not available

Connectivity

5 of 16 differ

Bluetooth audio playbackiPlays audio streamed over Bluetooth from a phone or other source. Bluetooth used only for setup or app control does not count.

Yes5Reviewtest-aankoop.be/hightech/draadloze-speakers/vergelijker/marshall-willen-ii/461/110300Read 13 October 2026

Yes1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026

Bluetooth versioniVersion of the Bluetooth radio. Some Wi-Fi speakers use Bluetooth only for setup. See Bluetooth audio playback.

5.31Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Wireless connectivity row says Bluetooth 5.3 LE. The maker support page says Bluetooth 5.2. The product page spec table is used. Bluetooth LE Audio-ready wording is not a statement of current support, so LE Audio and Auracast are not stored.

6.01Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Exact Specifications list Bluetooth 6.0. This does not establish LE Audio or Auracast. Wireless range is omitted because the lead says 100 ft while the same page table and launch article say 45 m.

Bluetooth codecsiExplicitly supported receive codecs. Bluetooth version alone does not establish codecs.

AAC5Reviewtest-aankoop.be/hightech/draadloze-speakers/vergelijker/marshall-willen-ii/461/110300Read 13 October 2026Comparison table lists AAC: Ja and aptX: Nee. SBC is not listed, so only AAC is stored. The maker states no codecs.

AAC, SBC1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Specifications and FAQ explicitly list receive codecs AAC and SBC.

Bluetooth profiles

Not available

A2DP, AVRCP, HFP, HSP2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 10 Bluetooth Protocol lists A2DP, AVRCP, HFP and HSP.

Bluetooth LE AudioiExplicit LE Audio support. Bluetooth LE for app control alone does not qualify.

Not available

Not available

AuracastiExplicit Auracast support. Sending, receiving and speaker-group roles belong in source notes.

Not available

Not available

MultipointiConcurrent Bluetooth source connections. Pairing memory and speaker-to-speaker linking do not qualify.

Yes1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Product details row says Bluetooth multipoint connectivity: Yes.

Yes2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF pages 2–3 pairing section says connect with up to two devices. The Chinese line explicitly says two devices can be connected simultaneously, resolving concurrent connection rather than pairing memory.

Multipoint source devicesiMaximum concurrently connected Bluetooth source devices, not remembered pairings.

22Owner's manualmarshall.com/on/demandware.static/-/Library-Sites-SharedLibrary-Marshall/default/dwe0dadd06/images/cms-pages/user/Marshall_Willen_II_OLM_R1_2_en.pdfRead 13 October 2026Pairing section says Willen II can be connected with 2 devices at a time and remembers up to 8 previously paired devices.

22Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026Maximum two concurrent source devices in the pairing section. Speaker A/B TWS linking is a separate connection.

Bluetooth range (claimed)iMaker-claimed Bluetooth range to the source device. Test conditions belong in the source note.

10m1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Bluetooth range row says up to 10 m in free field on every regional page opened. Several retailers and reviews say 100 m. The maker figure is used.

Not available

Wi-FiiBuilt-in Wi-Fi, for audio streaming, setup or control.

Not available

Not available

Wi-Fi standardsiOne 802.11 name per item, such as 802.11ax. A Wi-Fi generation is written as its standard, so Wi-Fi 5 is 802.11ac and Wi-Fi 6 is 802.11ax. Older standards are listed only when a source names them.

Not available

Not available

Network audio protocolsiNamed systems that stream audio to the speaker over the home network. AirPlay is written as AirPlay 2. Chromecast built-in is written as Google Cast. Other names follow the maker, such as Spotify Connect.

Not available

Not available

USB audio inputiPlayback from a connected computer or phone through USB. Charging, service ports and USB flash-drive playback do not qualify.

Not available

Not available

USB drive playbackiPlayback of audio files on a connected USB storage device.

Not available

Not available

USB audio file formats

Not available

Not available

PortsiPhysical speaker connectors. Record charging, audio input, power output and service roles separately. A shared microphone and guitar jack is one port. A combo jack that takes XLR and 6.35 mm plugs is 6.35 mm audio, and the role names XLR. Optical is a TOSLINK digital audio socket.

AMarshall Willen II

Connector	Count	Role
USB-C	1	Charging power input

Source2Owner's manualmarshall.com/on/demandware.static/-/Library-Sites-SharedLibrary-Marshall/default/dwe0dadd06/images/cms-pages/user/Marshall_Willen_II_OLM_R1_2_en.pdfRead 13 October 2026Device layout shows one USB-C power input.

BTribit StormBox Micro 3

Connector	Count	Role
USB-C	1	Charging input and reverse charging output, maximum 5 V / 1 A output

Source1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026One physical Type-C port serves charging input and reverse charging output. Published reverse output is 5 V / 1 A maximum. AUX input is explicitly unsupported. USB audio and USB media playback are not explicitly addressed.

Controls and software

3 of 8 differ

SpeakerphoneiBuilt-in microphone and call support, through a connected phone or a voice assistant's calling. A microphone used only for voice commands does not count. Microphone inputs for karaoke are separate.

Yes1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Built-in microphone for hands-free calls.2Owner's manualmarshall.com/on/demandware.static/-/Library-Sites-SharedLibrary-Marshall/default/dwe0dadd06/images/cms-pages/user/Marshall_Willen_II_OLM_R1_2_en.pdfRead 13 October 2026Device layout names a microphone that lets the speaker work as a speaker phone.

Yes1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Built-in call microphone and hands-free calls are explicitly supported.

Voice assistantsiVoice assistants explicitly usable through the speaker, such as Amazon Alexa, Google Assistant, Siri or Sonos Voice Control. State whether a connected phone is required.

Not available

Connected phone voice assistant2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 3 shows holding the multifunction button for two seconds to invoke Voice assistant on the connected phone. No specific assistant brand or standalone Wi-Fi assistant is claimed.

Controls

Power button, Bluetooth pairing and call-routing button, Multi-directional control knob1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Top panel controls: multi-directional control knob, on/off button, Bluetooth pairing button and battery indication.2Owner's manualmarshall.com/on/demandware.static/-/Library-Sites-SharedLibrary-Marshall/default/dwe0dadd06/images/cms-pages/user/Marshall_Willen_II_OLM_R1_2_en.pdfRead 13 October 2026Control knob: push once for play/pause and calls, left or right to skip, up or down for volume.

Power, Bluetooth pairing, Volume up/down, Play/pause, Next/previous track, Answer/end/reject calls, Activate connected phone voice assistant, XBass toggle, TWS stereo/party mode switch, Reset2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF pages 1–4 and 6 identify physical power, Bluetooth, XBass, TWS, volume and multifunction controls. Multifunction handles playback, tracks, calls and phone assistant. Reset holds volume plus/minus for five seconds. TWS toggles stereo to party mode.

Companion app

Marshall Bluetooth1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Compatible apps row names the Marshall Bluetooth app.

TRIBIT app1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026TRIBIT app is explicitly supported for EQ, sleep timer and updates.

App platforms

iOS, Android1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Compatible apps row says iOS and Android.

iOS, Android2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 7 explicitly shows App Store and Google Play distribution for the TRIBIT app. The actual StereoGuide review independently names iOS and Android.5Reviewstereoguide.com/bluetooth-speakers/mobile-outdoor/review-tribit-stormbox-micro-3Read 8 October 2026Actual review explicitly names TRIBIT app for iOS and Android. Its four-hour quick-charge claim conflicts with the maker three-hour claim, which takes precedence. Its 108 mm body depth conflicts with the manual tuple and is not adopted.

User firmware updates

Yes2Owner's manualmarshall.com/on/demandware.static/-/Library-Sites-SharedLibrary-Marshall/default/dwe0dadd06/images/cms-pages/user/Marshall_Willen_II_OLM_R1_2_en.pdfRead 13 October 2026Troubleshooting says to connect the Marshall Bluetooth app and follow the in-app instructions to get the latest firmware.

Yes2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 7 says the TRIBIT app upgrades firmware.

Built-in lightingiDecorative or ambient lighting. Status, battery, connection and microphone indicator LEDs alone do not qualify.

Not available

Not available

Lighting modes

Not available

Not available

Smart home

None of 3 known

Matter controlleriCan add and control Matter devices. Being a Matter device alone does not count.

Not available

Not available

Thread border routeriConnects Thread smart home devices to the home network.

Not available

Not available

Zigbee hubiA built-in Zigbee radio that controls Zigbee smart home devices.

Not available

Not available

Battery and charging

10 of 17 differ

Built-in battery

Yes1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Battery section gives play time and charging time for the built-in battery.

Yes2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 8 explicitly describes the built-in battery.

Playback time (claimed)iMaximum maker-claimed music playback on one charge in normal playback mode. Battery extension or reduced-bass boost modes belong in battery_life_boost_h. Record volume and lighting conditions in the source note.

17h1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Play time 17+ hours. Stored 17 for the stated threshold with the plus qualifier. No volume or setting is stated.

24h1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Maker claimed maximum 24 hours at 50% volume with default EQ under normal temperature conditions. Volume and music content affect runtime. XBass and higher volumes reduce runtime. This is normal playback, not a named battery-extension mode.

Playback with battery extension (claimed)iTotal claimed runtime with the named battery extension mode enabled. Store the total, not only the extra hours. Keep sound and lighting restrictions in the source note.

Not available

Not available

Battery energyiPublished battery pack energy. Do not calculate from an assumed voltage.

Not available

Not available

Battery capacityiPublished pack capacity at the voltage in battery_voltage_v. Do not substitute power-bank output capacity. A figure written per cell, such as 5000mAh*2, is not a pack capacity unless the maker states the pack figure.

Not available

4,800mAh1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Published battery pack capacity is 4800 mAh. Nominal battery voltage and Wh are not published and are not inferred.

Nominal battery voltage

Not available

Not available

Battery chemistry

Lithium-ion2Owner's manualmarshall.com/on/demandware.static/-/Library-Sites-SharedLibrary-Marshall/default/dwe0dadd06/images/cms-pages/user/Marshall_Willen_II_OLM_R1_2_en.pdfRead 13 October 2026Battery care guide says the speaker has lithium-ion batteries.

Lithium2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 8 says built-in lithium battery. Lithium-ion subtype is not separately published.

User-replaceable batteryiBattery that the maker documents as replaceable by the user. Service replacement does not qualify.

Not available

No2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026Maker safety instructions prohibit user disassembly, repair or modification. No maker-authorized battery replacement procedure is provided.

Full charge timeiTime from discharged to full under the maker conditions. Adapter rating and simultaneous use belong in source notes.

2.5h1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Charging time 2.5 hours. Charger rating is not stated on the page. The manual says 5 V, 1.5 A.

2h1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026About two hours to full using a certified 5 V / 3 A, 15 W wall charger. Lower-output chargers take longer. The wall charger is not included. Simultaneous playback is not specified.

Quick charge duration

20min1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Quick charging: 20 minutes of charge gives 5.5 hours of playtime.

15min1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Maker says 15 minutes of charging provides three hours of music. Battery claim footnote names normal temperature and 50% playback volume.

Playback after quick chargeiClaimed music playback after quick_charge_min of charging. Source conditions apply.

5.5h1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Maker claim of 5.5 hours of playtime after 20 minutes of charging. Volume and starting charge are not stated.

3h1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Up to three hours after 15 minutes of charging, under the maker battery-test conditions. The StereoGuide four-hour claim conflicts and is not adopted.

Charging input ratingiPublished speaker input voltage and current. An adapter rating alone does not establish device input.

5 V, 1.5 A2Owner's manualmarshall.com/on/demandware.static/-/Library-Sites-SharedLibrary-Marshall/default/dwe0dadd06/images/cms-pages/user/Marshall_Willen_II_OLM_R1_2_en.pdfRead 13 October 2026Charging section says to use a USB power source of 5 V, 1.5 A.

5 V DC, 3 A maximum1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Specifications give Type-C 5 V / 3 A MAX as the speaker charge input. This is separate from reverse output.

Max charging inputiPublished maximum charging input. USB audio power requirements and adapter output are separate.

Not available

15W2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 10 specifies about two hours with 15 W input. Page 11 identifies maximum 15 W charger power to achieve maximum charging speed. This corroborates the product page device input rating of 5 V / 3 A MAX, rather than only an adapter output assumption.

USB Power Delivery charging

Not available

Not available

Charges other devices

Not available

Yes2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 1 permits charging another device when the speaker battery is above 20%. Reverse charging may stop below that level.

Max power-bank outputiPublished power delivered by the speaker to another device. Output voltage and current belong in the source note.

Not available

Not available

Wireless chargingiThe speaker battery can be charged wirelessly. Wireless power output to another device is separate.

Not available

Not available

Durability

4 of 5 differ

Dust and water ratingiExact published IP rating. Keep separate ratings, such as IP68 and IP69, as separate entries.

IP671Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026IP67 means submersion in 1 m of water for up to 30 minutes.

IP681Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026IP68 is the exact maker claim. Close the port rubber cover in wet or humid use. No floating claim is inferred.

Floats

Not available

Not available

Drop resistanceiExplicit maker claim or defined drop test. Do not infer from rugged wording.

Not available

Yes1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Maker explicitly claims SGS-certified drop resistance tested to a U.S. military standard.

Drop test heightiMaker-published tested height. Surface and conditions belong in source notes.

Not available

1.22m1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Published tested drop height is 1.22 m. The launch article names hard surfaces. Exact military standard number and full procedure are unstated.

Carry featuresiPublished handles, straps, carabiners or wheels.

Fastening strap1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Rubber fastening strap for hanging or fixing the speaker.

Silicone strap, Built-in magnetic mount1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Silicone strap and integral magnetic mount. The strap is designed for poles around 30 mm diameter. Magnetic mounting is limited to static metal surfaces, not moving or vibrating objects.

Measured

None of 6 known

Playback time (measured)iReviewer-measured playback per charge. Volume, lighting, sound mode, firmware and connection belong in the source note.

Not available

Not available

Max sound pressure (measured)iReviewer-measured maximum SPL. Distance, test method and power source belong in source notes.

Not available

Not available

Low-frequency extension (measured)iReviewer-measured low-frequency limit. Threshold and test method belong in source notes.

Not available

Not available

High-frequency extension (measured)iReviewer-measured high-frequency limit. Threshold and test method belong in source notes.

Not available

Not available

Audio latency (measured)iReviewer-measured source-to-speaker latency. Source device, app, codec, firmware and connection belong in source notes. App compensation may affect results.

Not available

Not available

Full charge time (measured)iReviewer-measured time from empty to full. Power adapter and method belong in the source note.

Not available

Not available

Dimensions and weight

3 of 3 differ

DimensionsiSpeaker body width, height and depth on explicitly identified axes. Unlabeled tuples do not establish axis meanings. Handle, strap and orientation conditions belong in the source note.

Width100.5Height100.5Depth43.4mm(4 × 4 × 1.7 in)1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Physical unit table labels width 100.5 mm, height 100.5 mm and depth 43.4 mm. Bare speaker.

Not available

WeightiSpeaker mass including its battery. Excludes packaging, charger and removable carry accessories unless the source states otherwise.

360g(12.7 oz)1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Physical unit table, 0.36 kg converted exactly to 360 g.

330g(11.6 oz)2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026PDF page 10 gives product mass 330 g, using the manual before the web page rounded 0.73 lb. Body size on this page is an unlabeled 112 × 103 × 45 mm tuple. Maker web infographic instead shows 4.25-inch face width, so dimensions are omitted without assigning arbitrary axes.

Body materials

Silicone sleeve2Owner's manualmarshall.com/on/demandware.static/-/Library-Sites-SharedLibrary-Marshall/default/dwe0dadd06/images/cms-pages/user/Marshall_Willen_II_OLM_R1_2_en.pdfRead 13 October 2026Cleaning section says the silicone sleeve and carry strap can be removed.

Fabric exterior, Silicone strap3Maker product pageeu.tribit.com/blogs/news/stormbox-micro-3-is-here-to-change-how-you-rideRead 8 October 2026Maker design section describes fabric exterior and the integrated silicone strap. Other body polymer types are unstated.

Certifications

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FCC IDs

Not available

Not available

Other certifications

Not available

SGS-certified IP68 and drop resistance1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Maker explicitly names SGS certification for IP68 and drop resistance. Certificate number is not published.

In the box

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In the box

Willen II speaker, USB-C charging cable, User manual and legal and safety information1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026Box contents: speaker, USB-C charging cable, user manual and legal and safety information.

StormBox Micro 3 speaker, USB-C to USB-C charging cable, User manual1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Exact FAQ lists one speaker, one USB-C to USB-C cable and one user manual. No wall charger. Optional mounting accessories are excluded.

Links

Not compared

Product page

www.marshall.com/us/en/product/willen-ii1Maker product pagemarshall.com/us/en/product/willen-iiRead 13 October 2026

tribit.com/products/tribit-stormbox-micro-3-portable-speaker1Maker product pagetribit.com/products/tribit-stormbox-micro-3-portable-speakerRead 8 October 2026Exact selected US Black variant URL.

Spec sheet

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Manual

www.marshall.com/on/demandware.static/-/Library-Sites-SharedLibrary-Marshall/default/dwe0dadd06/images/cms-pages/user/Marshall_Willen_II_OLM_R1_2_en.pdf2Owner's manualmarshall.com/on/demandware.static/-/Library-Sites-SharedLibrary-Marshall/default/dwe0dadd06/images/cms-pages/user/Marshall_Willen_II_OLM_R1_2_en.pdfRead 13 October 2026Maker English full online manual, revision 1.2, nine pages.

cdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdf2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026Current maker Manual Download index links this own-model raster booklet. All twelve PDF pages were rendered and visually read. Cover page 12 names StormBox Micro 3 and radio equipment BTS36.

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

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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.

1year6Retailer pageamazon.com/dp/B0DD7T8H2QRead 13 October 2026Amazon US lists 1 Year Limited warranty. Market is the US.

1year2Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/BTS36_User_Manual-260109.pdfRead 8 October 2026Safety Precautions, PDF page 8, states warranty period 12 months. Current US Black reference using this maker booklet. Statutory consumer rights and extra seller warranties are excluded.

Both are also in the API. Back to all wireless speakers.