Wireless speakers / Compare

JBL Xtreme 4 vs soundcore Boom 2 Plus

A

Product A: JBL

Xtreme 4

58 of 96 known

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B

Product B: soundcore

Boom 2 Plus

51 of 96 known

Change soundcore Boom 2 Plus

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All 96 fields

Every value links to where we found it.

Only differences

AJBL Xtreme 4

Bsoundcore Boom 2 Plus

General

4 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

A3134, A3134012, A3134062, A31340327Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speaker.jsRead 15 October 2026Public store feed lists SKUs A3134012 (Phantom Black), A3134062 (Adventure Green) and A3134032 (Explorer Blue). The same SKUs now cover a 2025 hardware revision, which is not described here.

GTIN / EAN

Not available

194644038922, 194644038885, 1946440389607Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speaker.jsRead 15 October 2026Feed barcodes per color SKU. The 2-pack bundle SKUs have no barcode.

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

14 May 20241Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release dated 14 May 2024.

Status

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

Available7Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speaker.jsRead 15 October 2026Feed shows every variant available on 2026-10-15. The page text also shows a sold out label.

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

$249.991Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says $249.99 in the US. Excludes 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

US, GB1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says available in the US on Amazon, soundcore and other retail partners. The UK is from TechRadar and Tom's Guide.9Reviewtechradar.com/audio/wireless-bluetooth-speakers/anker-soundcore-boom-2-plus-reviewRead 15 October 2026List price $249.99 / £199.99 / AU$359.99. Tom's Guide says it is sold by Amazon UK for 199 GBP.

ColoursiThe maker's own colour names

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

Phantom Black, Adventure Green, Explorer Blue1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 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

Portable6Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speakerRead 15 October 2026The maker sells it as an outdoor bass Bluetooth speaker.

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

Stereo6Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speakerRead 15 October 2026Page says 2+2 Stereo Clarity with dual woofers and dual tweeters.

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 Plus

Driver type	Count	Diameter (mm)
Woofer	2	114.3
Tweeter	2	19.05

Source1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says two 4.5-inch woofers and two 1-inch tweeters. The user guide specification table says tweeter 0.75 inch x 2, which is stored because the manual outranks the release. Per-driver power is not stored. The 35 W and 15 W normal and 50 W and 20 W BassUp figures do not say whether they are continuous, RMS or peak.4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Specifications say Woofer 4.5 inch x 2, 50W and Tweeter 0.75 inch x 2, 20W. 4.5 in is 114.3 mm and 0.75 in is 19.05 mm.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

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

21Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says a pair of passive radiators, two symmetrical radiators with the light show.

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

100W1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says 100W of power, increased to 140W with BassUp on. No continuous, RMS or peak basis is stated, so rated and peak fields are left out.2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says 100W as standard, up to 140W in BassUp 2.0 mode.

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

40Hz4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Specifications say Frequency Response 40Hz-20kHz. No tolerance or mode is 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.

20kHz4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Specifications say 40Hz-20kHz.

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

Yes4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026App section lists preset EQ settings, and a maker help article describes a Custom EQ with an 80 Hz band of plus or minus 6 dB.

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.

Not available

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, Treble Boost, Balance, BassUp 2.04Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026App section lists the EQ presets soundcore Signature, Voice, Treble Boost and Balance. BassUp 2.0 has its own button.

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

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

Yes1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says the TWS button connects a pair of Boom 2 Plus for true stereo, separating left and right channels.2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says TWS pairs two speakers, the main speaker as left channel and the second as right channel.

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.

True Wireless Stereo (TWS), PartyCast 2.01Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says PartyCast 2.0 connects over 100 PartyCast-enabled soundcore speakers. The TWS button pairs two speakers for stereo.

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

1002Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says PartyCast 2.0 connects up to 100+ compatible speakers. The user guide and quick start guide say up to 100, which is stored.

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

10 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

Yes2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 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

5.32Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says Bluetooth 5.3. The 2024 hardware is the reference. A newer hardware revision uses Bluetooth 6.0 (see the Bluetooth FAQ and the current user guide).

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

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

SBC, AAC2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says SBC and MPEG-2 AAC LC.

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

No3Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-Bluetooth-FAQRead 15 October 2026Bluetooth FAQ says the hardware was upgraded to support Auracast and that the new Auracast version cannot pair with older PartyCast devices. Only the older PartyCast hardware is the reference here, so Auracast is false for this row. A later revision with Auracast, Bluetooth 6.0 and a C in the seventh serial digit is not described by this row.

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

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

Not available

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

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

Not available

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

Not available

100m4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Specifications say Bluetooth Range 100m.

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

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

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.

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 Plus

Connector	Count	Role
USB-C	1	Charging input and charge output to other devices
3.5 mm audio	1	AUX audio input

Source2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says the USB-C port on the back charges other devices, and there is an AUX jack.

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

Yes8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Review says calls work through the built-in microphone with decent clarity.

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 pairing, TWS pairing, Volume down, Volume up, Play/pause, Next track, Previous track, Answer/end call, Reject call, Light show, PartyCast pairing, BassUp 2.04Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Button Controls and At a Glance pages. Play/pause, next and previous track presses are listed there. Call answer and reject are from SoundGuys.8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Button table shows play/pause also answers and ends calls and a long press rejects a call.

Companion app

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

soundcore4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026The guide says to download the soundcore app.

App platforms

Not available

Android, iOS8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Review covers the Soundcore app. Tom's Guide lists iOS and Android compatibility.10Reviewtomsguide.com/audio/bluetooth-speakers/soundcore-boom-2-plus-reviewRead 15 October 2026Spec table lists compatibility iOS and Android.

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.

Yes2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ explains updating firmware in the soundcore app.

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

Not available

Yes1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says the passive radiators carry a light show with eight presets and custom colors.

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

13 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

Yes1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says a 7500 mAh/7.3V 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.

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.

20h1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Up to 20 hours at 50 percent volume with BassUp and light effects off.

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

7,500mAh1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says a 7500 mAh/7.3V built-in battery. No watt-hour figure is published.

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

7.3V1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says 7500 mAh/7.3V.

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.

3h2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says around 3 hours with a certified 30W wall charger.

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 3 A, 9 V 3 A, 15 V 2 A, 20 V 1.5 A4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Specifications say Charge Input 5V 3A, 9V 3A, 15V 2A, 20V 1.5A.

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

Not available

30W4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026The listed profiles top out at 20 V x 1.5 A. The guide lists a 30W max adapter, and the maker page says a 30W charger fully charges it in 3 hours.

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.

Yes2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says Boom 2 Plus supports Power Delivery fast charging.

Charges other devices

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

Yes2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says other devices can be charged through the USB-C port on the back.

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

Not available

10W2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says a 10W (5V/2A) charging output.

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

IPX71Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says IPX7 waterproof certification. The maker page and TechRadar say no dust rating.

Floats

Not available

Yes1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says it can float on water.

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 handle, Removable carry strap1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says a built-in handle and a strap. SoundGuys calls the strap removable.8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Review says a massive handle and a removable carrying strap.

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.

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.

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.

Width442mm9Reviewtechradar.com/audio/wireless-bluetooth-speakers/anker-soundcore-boom-2-plus-reviewRead 15 October 2026Spec table says 17.4 x 5.9 x 9 inches / 442 x 150.9 x 228.1mm with no axis labels. SoundGuys and Tom's Guide give the same numbers. Only the width of 442 mm is stored, since it is the long axis of the boombox. The 150.9 and 228.1 mm axes are not named.

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

3,800g(8.4 lb)8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Review spec table says 3.8kg. TechRadar says 3.8 kg and The Gadgeteer 8.38 lb.

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, Aluminum grille8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Review says a robust plastic housing and an aluminum grill.

Certifications

None of 1 known

FCC IDs

Not available

Not available

Other certifications

Not available

Not available

In the box

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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.

soundcore Boom 2 Plus speaker, 60 cm USB-C to USB-C cable, Quick Start Guide, Carry strap2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ lists the speaker, a 60 cm USB-C to C cable and the quick start guide, and says a wall charger is not included. The carry strap is from the press release photos, TechRadar and The Gadgeteer.

Links

Not compared

Product page

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

us.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speaker6Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speakerRead 15 October 2026

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-Plus-User-Guide-A31344Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026The linked 5-page PDF is the current guide. It describes the 2025 revision with Bluetooth 6.0 and Auracast. Its non-Bluetooth specifications match the 2024 hardware. A Polish copy of the 2024 guide on manuals.plus shows the same table with Bluetooth 5.3.

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

1.5years5Maker spec sheet (PDF)lp.ankerjapan.com/hubfs/aoos/manual/A3134QSG.pdfRead 15 October 2026Version V01 of the 2024 quick start guide says 18-month limited warranty. The guide is multi-market, so no market is named. Stored as 1.5 years.

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