Wireless speakers / Compare

JBL Xtreme 4 vs soundcore Boom 2

A

Product A: JBL

Xtreme 4

58 of 96 known

Change JBL Xtreme 4

Compare the soundcore Boom 2 with

Search wireless speakers

B

Product B: soundcore

Boom 2

48 of 96 known

Change soundcore Boom 2

Compare the JBL Xtreme 4 with

Search wireless speakers

All 96 fields

Every value links to where we found it.

Only differences

AJBL Xtreme 4

Bsoundcore Boom 2

General

5 of 8 differ

Series

Not available

Not available

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

JBLXTREME4BLKAM1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

A31381Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026Original 2024 A3138 hardware with Bluetooth 5.3 and PartyCast. The current sales page includes a newer Bluetooth 6/Auracast revision and a copied Boom 2 Plus codec FAQ. Those values do not describe this reference model.

GTIN / EAN

Not available

Not available

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

8 January 20247Press releasenews.jbl.com/en-CEU/233279-music-is-better-connected-as-jbl-launches-its-first-auracasttm-enabled-portable-speakersRead 8 October 2026

Not available

Status

Available1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

Not available

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

JBL Xtreme 310Reviewsoundguys.com/jbl-xtreme-4-100540Read 23 October 2026SoundGuys calls the Xtreme 3 the predecessor of the new JBL Xtreme 4.

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.

JBL Xtreme 511Reviewtechradar.com/audio/wireless-bluetooth-speakers/jbl-xtreme-5-reviewRead 23 October 2026TechRadar's review says the Xtreme 5 launched about two years after its predecessor, the JBL Xtreme 4.

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

$129.992Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026US launch price, excluding tax.

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

Not available

Not available

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

Not available

US2Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026

ColoursiThe maker's own colour names

Black, Blue, Black Camo1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

Phantom Black, Adventure Green, Explorer Blue2Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026

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 pagejbl.com/XTREME-4.htmlRead 8 October 2026

Portable3Maker product pagesoundcore.com/products/boom2-bluetooth-speaker-for-bassRead 8 October 2026

Audio

10 of 18 differ

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

Stereo5Measurementrtings.com/speaker/reviews/jbl/xtreme-4Read 8 October 2026

Stereo2Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026Maker calls this a 2.1-channel stereo design.

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.

AJBL Xtreme 4

Driver type	Count	Diameter (mm)	Rated power per driver (W)
Woofer	2	70	20
Tweeter	2	20	15

Source3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026Quick start guide TECH SPEC. Per-driver powers are battery mode. External-power mode is 30 W per woofer and 20 W per tweeter. All per-driver output figures are RMS ratings.

Bsoundcore Boom 2

Driver type	Count	Diameter (mm)
Woofer	1	Not available
Tweeter	2	20

Source1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026Specifications. Woofer 90×120 mm dimensions lack width and height labels and are omitted. Two 20 mm tweeters.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

21Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

22Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026

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.

70W4Reviewsoundguys.com/jbl-xtreme-4-review-117134Read 8 October 2026Explicit 70 W battery total in What you need to know. Matches maker battery component ratings.

Not available

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

100W4Reviewsoundguys.com/jbl-xtreme-4-review-117134Read 8 October 2026Explicit 100 W external-power total. Requires the AC-to-USB-C power source.

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.

Not available

60W2Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026Maker publishes 60 W audio output in standard mode and 80 W with BassUp 2.0. The RMS or continuous basis is not published, so only the unspecified-rating field is filled with the standard mode value.

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.

Not available

45Hz1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026Specifications. Published 45 Hz-20 kHz. Tolerance and mode are not stated.

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.

20kHz3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026TECH SPEC publishes this endpoint. No amplitude tolerance or operating-mode condition is stated.

20kHz1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026Specifications. Published 45 Hz-20 kHz. Tolerance and mode are not stated.

Signal-to-noise ratio (claimed)

Not available

Not available

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

Yes1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

Yes1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

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

54Reviewsoundguys.com/jbl-xtreme-4-review-117134Read 8 October 2026Five-band custom EQ in JBL Portable v6.2.21 with speaker firmware .0.5.5.0.

94Reviewsoundguys.com/anker-soundcore-boom-2-review-110934Read 8 October 2026

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

Yes1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026AI Sound Boost analyzes playback and predicts driver movement and power response. It limits distortion at high volume.

Not available

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

Playtime Boost2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwd4772be5/pdfs/JBL_Xtreme_4_Specsheet_EN_(with_Adaptor).pdfRead 8 October 2026

soundcore Signature, Voice, Balance, Treble Boost, BassUp 2.01Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 20262Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026Maker publishes standard mode 60 W audio output, woofer 40 W and two 10 W tweeters. BassUp 2.0 increases output to 80 W, woofer 50 W and two 15 W tweeters. The RMS or continuous basis is not published, so rated and peak power fields are omitted.

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

Yes1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

Yes1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

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

Auracast, PartyBoost1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026Auracast links compatible JBL speakers. PartyBoost compatibility uses the JBL Portable app. Stereo pairing requires two Xtreme 4 speakers.

PartyCast 2.02Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026

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

1001Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026PartyCast Mode. Up to 100 physical compatible soundcore speakers synchronize audio and lights. The manual limit takes precedence over launch wording over 100.

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

6 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.

Yes4Reviewsoundguys.com/jbl-xtreme-4-review-117134Read 8 October 2026

Yes4Reviewsoundguys.com/anker-soundcore-boom-2-review-110934Read 8 October 2026

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

5.33Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026

5.31Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

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

SBC4Reviewsoundguys.com/jbl-xtreme-4-review-117134Read 8 October 2026

SBC4Reviewsoundguys.com/anker-soundcore-boom-2-review-110934Read 8 October 2026Original 2024 review sample A3138, explicitly SBC only.

Bluetooth profiles

A2DP, AVRCP 1.63Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026QSG says A2DP 1.4. Datasheet says A2DP 1.3. Only the undisputed A2DP profile name is stored. Both say AVRCP 1.6.

Not available

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.

Yes1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

Not available

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

Yes4Reviewsoundguys.com/jbl-xtreme-4-review-117134Read 8 October 2026

Yes6Reviewrtings.com/speaker/reviews/anker/soundcore-boom-2Read 8 October 2026

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

24Reviewsoundguys.com/jbl-xtreme-4-review-117134Read 8 October 2026

26Reviewrtings.com/speaker/reviews/anker/soundcore-boom-2Read 8 October 2026Public outdoor verdict explicitly states up to two devices simultaneously.

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

Not available

100m1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

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

No5Measurementrtings.com/speaker/reviews/jbl/xtreme-4Read 8 October 2026

No6Reviewrtings.com/speaker/reviews/anker/soundcore-boom-2Read 8 October 2026

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.

No4Reviewsoundguys.com/jbl-xtreme-4-review-117134Read 8 October 2026

Not available

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

No4Reviewsoundguys.com/jbl-xtreme-4-review-117134Read 8 October 2026FAQ explicitly says the speaker cannot play music from USB.

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.

AJBL Xtreme 4

Connector	Count	Role
USB-C	1	Charging input and power-bank output

Source3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026

Bsoundcore Boom 2

Connector	Count	Role
USB-C	1	Charging input
USB-A	1	Power-bank output

Source1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

Controls and software

5 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.

No5Measurementrtings.com/speaker/reviews/jbl/xtreme-4Read 8 October 2026

Yes1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026Button Controls explicitly document answer/end/reject calls. SoundGuys also tests microphone call support. RTINGS public no-speakerphone cell conflicts and is not used.

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

Not available

Controls

Power, Bluetooth pairing, Auracast linking, Volume up, Volume down, Play/pause, Next track, Previous track3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026PLAY diagram shows one press for play/pause, two for next track and three for previous track.

Power, Bluetooth and stereo pairing, Volume, Play/pause and track navigation, Answer/end call, Phone voice assistant, PartyCast, BassUp, Lighting1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

Companion app

JBL Portable1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

soundcore1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

App platforms

Not available

Android, iOS4Reviewsoundguys.com/anker-soundcore-boom-2-review-110934Read 8 October 2026

User firmware updates

Yes3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026APP section documents software upgrades through JBL Portable.

Yes1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

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

Not available

Yes1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

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

11 of 17 differ

Built-in battery

Yes3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026

Yes2Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026

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.

24h3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026Up to 24 hours. Depends on volume and audio content.

24h2Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026Up to 24 h at 50 % volume, BassUp and lighting off. This is ordinary 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.

30h2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwd4772be5/pdfs/JBL_Xtreme_4_Specsheet_EN_(with_Adaptor).pdfRead 8 October 2026Page 2 claims 24 hours plus 6 additional hours with Playtime Boost. Total 30 hours in that mode. SoundGuys reports this mode reduces bass.4Reviewsoundguys.com/jbl-xtreme-4-review-117134Read 8 October 2026Playtime Boost extends runtime by reducing bass. The normal maker runtime and extension-mode total are separate. The maker source supplies the total-hour claim.

Not available

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

68Wh3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026

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.

9,444mAh3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026

4,900mAh1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

Nominal battery voltage

7.2V3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026

7.3V1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

Battery chemistry

Lithium-ion polymer3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026

Not available

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

Yes1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

Not available

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

3.5h3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 20263.5 hours with 20 V / 3 A speaker input.

5.5h1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

Quick charge duration

10min3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026

Not available

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

2h3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026

Not available

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

USB-C: 5 V, 9 V, 12 V, 15 V or 20 V at 3 A3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026

5 V DC, 3 A1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

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

Not available

Not available

USB Power Delivery charging

Yes3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026PD adapter and USB-C input are documented. The later no-adapter QSG explicitly calls the charging protocol USB PD.9Owner's manualuk.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwd6b1df7e/pdfs/LS_JBL_Xtreme_4_QSG_Global_No_Adaptor_CR_V5.pdfRead 8 October 2026CHARGING panel explicitly identifies USB PD fast charging. Adapter sold separately.

Not available

Charges other devices

Yes1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

Yes1Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026Specifications. USB-A DC output 5 V, 1 A. No original hardware output wattage is explicitly published.

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

3 of 5 differ

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

IP671Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

IPX71Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

Floats

Not available

Yes2Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026

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

Not available

Not available

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

Not available

Not available

Carry featuresiPublished handles, straps, carabiners or wheels.

Detachable shoulder strap with bottle opener1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

Built-in handle2Press releaseeinpresswire.com/article/693813011/soundcore-launches-boom-2-second-generation-chest-pounding-outdoor-speakerRead 8 October 2026

Measured

1 of 6 differ

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

27.2h5Measurementrtings.com/speaker/reviews/jbl/xtreme-4Read 8 October 2026Public Xtreme 5 comparison states 27.2 hours for Xtreme 4. Review uses test bench 0.8. RTINGS battery method loops audio at 80 dB SPL measured 1 m away. Speaker-specific firmware and Boost state are not publicly stated.6Measurementrtings.com/speaker/tests/active-features/batteryRead 8 October 2026Method: full charge, latest available firmware, repeated audio track at 80 dB SPL from 1 m until shutdown.

27.13h7Measurementsoundguys.com/anker-soundcore-boom-2-review-110934Read 8 October 2026SoundGuys battery test section reports 27 h 8 min with the same 50 % volume, BassUp off and lights off conditions as the 24 h maker claim. App 1.08. Firmware, codec and exact music loop are not published.

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.

Width297Height149Depth141mm(11.7 × 5.9 × 5.6 in)3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026TECH SPEC explicitly names width x height x depth.

Width295Height184Depth94mm(11.6 × 7.2 × 3.7 in)5Spec databasesoundguys.com/product/soundcore-boom-2Read 8 October 2026Design section explicitly labels Dimensions Width 295 mm, Height 184 mm, Depth 94 mm. Cross-checked review tuple. Other generated specs on this page conflict with the original manual and are not used.

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

2,100g(4.6 lb)3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdfRead 8 October 2026

1,700g(3.7 lb)4Reviewsoundguys.com/anker-soundcore-boom-2-review-110934Read 8 October 2026Review identity table 1.7 kg.

Body materials

Post-consumer recycled plastic, Recycled fabric, Rubber bumpers1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026Recycled plastic and fabric stated in Features. Rubber bumpers stated in Description.

Plastic housing, Aluminium grille4Reviewsoundguys.com/anker-soundcore-boom-2-review-110934Read 8 October 2026

Certifications

None of 1 known

FCC IDs

Not available

Not available

Other certifications

Not available

Not available

In the box

1 of 1 differ

In the box

JBL Xtreme 4, Shoulder strap, Quick start guide, Warranty card and safety sheet1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026Current US product-page box list. An adapter appears in earlier regional documents and is not listed in this current box list.

Speaker, 60 cm USB-C to USB-C cable, Quick Start Guide3Maker product pagesoundcore.com/products/boom2-bluetooth-speaker-for-bassRead 8 October 2026No wall charger included.

Links

Not compared

Product page

www.jbl.com/XTREME-4.html1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

www.soundcore.com/products/boom2-bluetooth-speaker-for-bass3Maker product pagesoundcore.com/products/boom2-bluetooth-speaker-for-bassRead 8 October 2026Reference specs describe original 2024 A3138. Current sales page includes a newer Bluetooth 6/Auracast revision, so use the linked original manual for hardware identity.

Spec sheet

www.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwd4772be5/pdfs/JBL_Xtreme_4_Specsheet_EN_(with_Adaptor).pdf1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

Not available

Manual

www.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb9d8d5a6/pdfs/PA_JBL_Xtreme%204_QSG_Global_SOP_V11_online.pdf1Maker product pagejbl.com/XTREME-4.htmlRead 8 October 2026

service.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A31381Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-User-Guide-A3138Read 8 October 2026

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

Not available

Not available

Warranty

None of 1 known

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

Not available

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