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Tribit StormBox Lava

TribitPortable wireless speaker

StormBox Lava

Released March 2025.4Press releasekyodonewsprwire.jp/release/202503195971Read 15 October 2026Release of 19 March 2025 says available now on tribit.com and Amazon. The Tribit store page was published on 7 March 2025 and SoundGuys gives 10 March 2025. Last checked 21 October 2026.

Rated audio power
Not available
Playback time (claimed)
24h
Dust and water rating
IP67
Weight
2,300g

50 of 96 fields known.

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At a glance

Ports

  • USB-C
  • USB-A
  • 3.5 mm audio

All specs

SourceCalculated

General

Series
StormBox1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026The page title and marketing name StormBox Lava belong to Tribit's StormBox range, which also holds the StormBox Max.
Model numbers
BTS51, E51-2591N-01, E51-2591N-022Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speaker.jsRead 15 October 2026Public store feed lists SKUs E51-2591N-01 (Black) and E51-2591N-02 (Gray). BTS51 is the radio model in the manual.
GTIN / EAN
Not available
Announced
Not available
Status
Available1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026US store shows both colors in stock on 2026-10-15.
Predecessor
Not available
Successor
Not available
Launch price (US)
$129.994Press releasekyodonewsprwire.jp/release/202503195971Read 15 October 2026PR Newswire release of 19 March 2025 says the speaker is available now at $129.99. The store has since moved to 139.99 USD. The 30 percent launch code is not a list price. The Gray option arrived later, so only the Black row carries this price.
Launch price (EU)
Not available
Markets
US, EU, GB5Press articlet3.com/tech/bluetooth-speakers/tribit-wants-you-to-fall-in-lava-with-its-powerful-portable-speakerRead 15 October 2026T3 of 19 March 2025 gives the RRP as 129.99 GBP and says it is sold by Tribit UK. US and EU stores both list the SKUs: the EU store feed lists both colors in euro.6Maker product pageeu.tribit.com/products/tribit-stormbox-lava-portable-bluetooth-speaker.jsRead 15 October 2026EU store sells both SKUs. No EU launch price is stored because the feed shows current store prices only.
Colours
Black, Gray1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026
Speaker type
Portable1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026

Audio

Audio channels
Not available
Audio drivers
Driver typeCount
Neodymium magnet woofer2
Silk dome tweeter2
Source1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Technical Specifications say Output Power 80W (2*30W-Woofer+2*10W-Tweeter). The page says dual neodymium magnet woofers and dual silk dome tweeters. No driver diameters are published. Per-driver power is not stored because the page does not say whether it is continuous, RMS or peak.
Passive radiators
Not available
Rated audio power
Not available
Rated audio power on mains
Not available
Audio output power (unspecified rating)
80W1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says Output Power 80W. No continuous, RMS or peak basis is stated, so rated and peak fields are left out.
Peak audio power
Not available
Frequency response lower limit (claimed)
43Hz1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says Frequency Response Range 43~20KHz. No tolerance or mode is stated.
Frequency response upper limit (claimed)
20kHz1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says 43~20KHz.
Signal-to-noise ratio (claimed)
Not available
Adjustable equalizer
Yes3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026App page says to download the TRIBIT app to adjust the EQ settings. SoundGuys and TechRadar describe the custom EQ.
Equalizer bands
107Reviewsoundguys.com/tribit-stormbox-lava-review-xtreme4-vibes-without-the-jbl-price-141830Read 15 October 2026App section says a 10-band custom EQ. The review used firmware V1.5.5 and app V3.7.0. Maker firmware V2.0.0 later redesigned the custom EQ, so the band count may differ today.
Automatic sound adjustment
Not available
Sound modes
XBass7Reviewsoundguys.com/tribit-stormbox-lava-review-xtreme4-vibes-without-the-jbl-price-141830Read 15 October 2026App section lists EQ presets including Xtra Bass. XBass is also a button on the speaker.
Wireless stereo pairing
Yes1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026FAQ says two Lava speakers can be paired in stereo mode.
Speaker link protocols
Stereo Mode (TWS), Party Mode3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026The manual has a Stereo Mode page (TWS button, speaker A left and speaker B right) and a Party Mode page (TWS button pressed twice).
Max linked speakers
1003Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Party Mode page says up to 100+ speakers can be connected at the same time. Stored as 100. Tribit's launch release and TechRadar say 160+, which does not match the manual.
Max Bluetooth group speakers
Not available

Connectivity

Bluetooth audio playback
Yes1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026
Bluetooth version
5.41Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026
Bluetooth codecs
SBC, AAC1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026
Bluetooth profiles
A2DP, AVRCP, HSP, HFP1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says A2DP, AVRCP, HSP, HFP.
Bluetooth LE Audio
Not available
Auracast
Not available
Multipoint
Yes3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 202612-page multi-language manual with outlined text, read from page images and OCR. Page 4 says the speaker can connect to up to two Bluetooth devices at the same time.7Reviewsoundguys.com/tribit-stormbox-lava-review-xtreme4-vibes-without-the-jbl-price-141830Read 15 October 2026Connectivity section says it supports multipoint with two devices.
Multipoint source devices
23Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Page 4 says up to two Bluetooth devices at the same time.
Bluetooth range (claimed)
30m1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says Wireless Distance 120ft (>30m). Stored as 30 m, the published lower bound.
Wi-Fi
Not available
Wi-Fi standards
Not available
Network audio protocols
Not available
USB audio input
Not available
USB drive playback
Not available
USB audio file formats
Not available
Ports
ConnectorCountRole
USB-C1Charging input
USB-A1Charge output to other devices
3.5 mm audio1AUX audio input
Source1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table lists AUX Input: Support. The USB-C input and USB-A output are from the manual and The Gadgeteer.3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026USB-A page shows the rear port panel and says the speaker charges other devices from the USB-A port. The Charging page shows the rear charging port. The manual also says to switch between Bluetooth and the audio cable with two quick presses of the Bluetooth button.10Reviewthe-gadgeteer.com/2025/04/15/tribit-stormbox-lava-bluetooth-speaker-review-bassheads-rejoiceRead 15 October 2026Review lists a USB-C input for charging, a USB-A output for charging other devices and a 3.5 mm AUX input, all under the rear cover.

Controls and software

Speakerphone
Yes1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026FAQ says the speaker has a built-in call microphone and supports hands-free calling.
Voice assistants
Connected phone voice assistant3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Controls page: press and hold the center button for 2 seconds for the voice assistant. SoundGuys says it opens the phone's assistant and there is no built-in Alexa or Google Assistant.
Controls
Power, Bluetooth pairing, Volume down, Volume up, Play/pause, Next track, Previous track, Answer/end call, Reject call, Voice assistant, XBass on/off, TWS and Party Mode3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Controls page lists play/pause (x1), next track (x2), last track (x3), answer/end call (x1), reject call (2 s), voice assistant (2 s), volume down/up and XBass on/off. The top panel also has power, Bluetooth and TWS buttons.
Companion app
TRIBIT app1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026TRIBIT app, listed as Support in the spec table.
App platforms
iOS, Android1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026FAQ says the TRIBIT app is available on iOS and Android.
User firmware updates
Yes1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026FAQ says firmware updates are made in the TRIBIT app and need at least 50 percent battery.
Built-in lighting
No9Reviewtechradar.com/audio/wireless-bluetooth-speakers/tribit-stormbox-lava-reviewRead 15 October 2026Design section says it is a plain black speaker with no lights. The manual and product page name no lighting.
Lighting modes
Not available

Smart home

We could not find any of these 3 fields. Show them
Matter controller
Not available
Thread border router
Not available
Zigbee hub
Not available

Battery and charging

Built-in battery
Yes3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Safety precautions say the product has a built-in lithium battery.
Playback time (claimed)
24h1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says 24 Hours at 50% volume with XBass Off. This is normal playback with the bass boost off, so it is not stored as a battery extension figure.
Playback with battery extension (claimed)
Not available
Battery energy
43.2Wh1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says Battery 43.2Wh. No mAh or voltage is published.
Battery capacity
Not available
Nominal battery voltage
Not available
Battery chemistry
Lithium3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Safety precautions say the product has a built-in lithium battery. The type of lithium cell is not stated.
User-replaceable battery
Not available
Full charge time
5h1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says About 5 hours with 15W input. The charger is not included.
Quick charge duration
Not available
Playback after quick charge
Not available
Charging input rating
Not available
Max charging input
15W3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Compliance note says the charger power must be between 2 W and 15 W to reach the maximum charging speed. A charger is not included.
USB Power Delivery charging
Not available
Charges other devices
Yes3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Page 3 (To Charging Other Devices): use the USB-A port to charge other devices. It stops below 20 percent battery. No output wattage is published.
Max power-bank output
Not available
Wireless charging
Not available

Durability

Dust and water rating
IP671Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says IP67. The FAQ says it withstands immersion in up to 1 m of water for 30 minutes.
Floats
Not available
Drop resistance
Not available
Drop test height
Not available
Carry features
Detachable shoulder strap, Detachable handle1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026The page says it comes with dual straps of different lengths. The box photo on the same page shows a shoulder strap and a detachable handle.

Measured

Playback time (measured)
24.99h8Measurementsoundguys.com/tribit-stormbox-lava-review-xtreme4-vibes-without-the-jbl-price-141830Read 15 October 2026SoundGuys battery test: music source at 80 dB measured 1 m away, 24 h 59 min 27 s, stored as 24.99 h. Firmware V1.5.5, app V3.7.0. XBass state and codec are not published, so the maker's XBass-off conditions are not confirmed.
Max sound pressure (measured)
Not available
Low-frequency extension (measured)
Not available
High-frequency extension (measured)
Not available
Audio latency (measured)
Not available
Full charge time (measured)
Not available

Dimensions and weight

Dimensions
Width310mm3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Specification page says Size 310mm X 147mm X 152mm with no axis labels. Only width 310 mm is stored, since it is the long axis of the horizontal speaker. Sources disagree on whether 147 or 152 mm is the height, so height and depth are left out.
Weight
2,300g(5.1 lb)1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says 5.07 lbs, which equals the manual's 2300 g.3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Specification page says Weight 2300g.
Body materials
Fabric exterior, Plastic end caps7Reviewsoundguys.com/tribit-stormbox-lava-review-xtreme4-vibes-without-the-jbl-price-141830Read 15 October 2026Design section says it is wrapped in a durable fabric and its end caps over the passive radiators are plastic.

Certifications

FCC IDs
Not available
Other certifications
CE (Radio Equipment Directive 2014/53/EU), UK Declaration of Conformity3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Page 1 carries the EU declaration of conformity for the radio equipment type Portable Wireless Speaker BTS51 and a link to the UK Declaration of Conformity.

In the box

In the box
StormBox Lava speaker, USB-A to USB-C charging cable, Shoulder strap, Detachable handle, User manual3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Page 1 shows the speaker, strap, USB cable and a Charger not included mark. The product page box photo adds the detachable handle and the user manual.

Warranty

Manufacturer warranty (source market)
1year3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Safety precautions say the warranty period is 12 months. The manual is multi-market, so the market is not named.

Compare with

Pick a wireless speaker to see both side by side. Differences are marked yellow.

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Variants

Each variant lists only what differs from the specs above.

Model numberLaunch price (US)Colours
E51-2591N-01$129.99Black
E51-2591N-02Not availableGray

Sources

We read 10 sources for this wireless speaker. The numbers match the markers in the sheet.

  1. Read 15 October 2026Backs 28 fields
  2. Read 15 October 2026Backs 1 field
  3. Read 15 October 2026Backs 17 fields
  4. Read 15 October 2026Backs 2 fields
  5. Read 15 October 2026Backs 1 field
  6. Read 15 October 2026Backs 1 field
  7. Read 15 October 2026Backs 4 fields
  8. Read 15 October 2026Backs 1 field
  9. Read 15 October 2026Backs 1 field
  10. Read 15 October 2026Backs 1 field

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