Wireless speakers / Compare

JBL Xtreme 3 vs Ultimate Ears EPICBOOM

A

Product A: JBL

Xtreme 3

53 of 96 known

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B

Product B: Ultimate Ears

EPICBOOM

44 of 96 known

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All 96 fields

Every value links to where we found it.

Only differences

AJBL Xtreme 3

BUltimate Ears EPICBOOM

General

5 of 8 differ

Series

Xtreme1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026

BOOM1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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

JBLXTREME3BLKAM, JBLXTREME3BLUAM1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026US store page read in Chrome. Blue selection ITEM# JBLXTREME3BLUAM. Black is JBLXTREME3BLKAM, the model number in the job evidence and on Amazon US listings. A third colour SKU is not listed.

Not available

GTIN / EAN

Not available

Not available

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

2 September 20207Press articletechaeris.comRead 23 October 2026Announced 2 September 2020 at IFA 2020 (MobileSyrup and SoundGuys carry the same date).

6 September 20234Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026

Status

Available1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026US store sells it at 329.95 USD, in stock, with an Add To Cart button (read 2026-10-23).

Available1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

JBL Xtreme 42Maker product pagesupport.jbl.com/in/en/speakers/speakers-portable/XTREME-3-.htmlRead 23 October 2026Support page: Predecessor Xtreme 2, Successor JBL Xtreme 4. Manufactured from 2020 until now.11Reviewrtings.com/speaker/reviews/jbl/xtreme-3Read 23 October 2026Public notice: this speaker was replaced by the JBL Xtreme 4.12Reviewsoundguys.com/jbl-xtreme-4-100540Read 23 October 2026SoundGuys calls the Xtreme 3 the predecessor of the new 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.

$349.957Press articletechaeris.comRead 23 October 2026Copy of the JBL announcement: US 349.95 USD on jbl.com in November 2020. SoundGuys lists 379 USD as the original price, which differs.

$349.994Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026US launch MSRP $349.99 before 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.

€2997Press articletechaeris.comRead 23 October 2026Copy of the JBL announcement: 299 EUR in October 2020. AV Watch also reports 299 euro. Tax treatment not stated.9Press articleav.watch.impress.co.jp/docs/news/1275118.htmlRead 23 October 2026IFA 2020 report: Xtreme 3 at 299 euro.

Not available

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

US1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026US store page, reference market.

US1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

ColoursiThe maker's own colour names

Black, Blue, Squad1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026Black, Blue and Squad (camouflage) are the launch colours in What Hi-Fi. RTINGS calls the camo Black Camo.7Press articletechaeris.comRead 23 October 2026JBL announcement lists the colours of the new speakers together.8Press articlewhathifi.com/news/jbl-unveils-go-3-xtreme-3-and-clip-4-portable-bluetooth-speakersRead 23 October 2026Available in blue, black and squad (camouflage).

Charcoal Black, Cotton White1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 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-3-.htmlRead 23 October 2026

Portable1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

Audio

11 of 18 differ

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

Stereo11Reviewrtings.com/speaker/reviews/jbl/xtreme-3Read 23 October 2026Verdict: the Xtreme 3 plays stereo content without downmixing it to mono.

Stereo5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026Public Music verdict explicitly states stereo playback without downmixing to mono.

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 3

Driver type	Count	Diameter (mm)	Rated power per driver (W)
Woofer	2	70	25
Tweeter	2	20	25

Source3Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Technical Specifications on the JBL Singapore store: transducers 2 x 70 mm woofer and 2 x 20 mm tweeter. Rated output 2 x 25W RMS woofer + 2 x 25W RMS tweeter (AC power mode), so 25 W RMS per driver on external power. Battery-mode ratings are not published.5Measurementdxomark.comRead 23 October 2026DXOMARK key specifications: four drivers (2 x 70 mm and 2 x 20 mm) and two passive radiators.

BUltimate Ears EPICBOOM

Driver type	Count
Mid-high frequency	2
Woofer	1

Source1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026Product embedded technical specs: two active mid-high frequency transducers and one woofer. Diameters omitted due to differing maker support and launch figures.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

23Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Store text and JBL: two JBL Bass Radiators.5Measurementdxomark.comRead 23 October 2026DXOMARK key specifications: two passive radiators.

Not available

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

Not available

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

100W1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026Specs: output power 2 x 25W RMS woofer + 2 x 25W RMS tweeter, so 100 W RMS in total. The JBL Singapore store copy of the technical specification adds the qualifier AC power mode. No battery-mode rating is published.3Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Rated output power is given for AC power mode.

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

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.

53.5Hz1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026Specs: dynamic frequency response range 53.5 Hz - 20k Hz. No tolerance stated.

55Hz2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026Support frequency response 55 Hz to 20 kHz, +/-3 dB at 80 dB SPL, free field.

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 pagejbl.com/XTREME-3-.htmlRead 23 October 2026Specs: dynamic frequency response range 53.5 Hz - 20k Hz. No tolerance stated.

20kHz2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026Support frequency response 55 Hz to 20 kHz, +/-3 dB at 80 dB SPL, free field.

Signal-to-noise ratio (claimed)

80dB3Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Technical specification: signal-to-noise ratio > 80 dB. Stored 80, the greater-than qualifier is here.

Not available

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

Yes4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: a basic equalizer adjusts highs, mids and lows.

Yes1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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

34Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Highs, mids and lows are three adjustable bands. RTINGS calls it a graphic EQ.

Not available

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

Not available

Yes3Owner's manualsupport.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOMRead 8 October 2026Adaptive EQ control explicitly includes EPICBOOM and adjusts sound for the environment. Internal microphone is for acoustic adjustment, not calls.

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

Not available

Signature, Bass Boost, Game/Cinema, Podcast/Vocal, Deep Relaxation, Outdoor Boost4Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026Maker launch lists five BOOM app EQ presets and Outdoor Boost. Current product technical text lists four presets but does not explicitly deny Podcast/Vocal.

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

Yes3Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Store text: PartyBoost pairs two compatible speakers for stereo sound. SoundGuys says stereo mode needs two Xtreme 3 speakers.4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: stereo mode only works with another JBL Xtreme 3.5Measurementdxomark.comRead 23 October 2026DXOMARK: stereo pair and multi-mono capable through PartyBoost.

Not available

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

PartyBoost2Maker product pagesupport.jbl.com/in/en/speakers/speakers-portable/XTREME-3-.htmlRead 23 October 2026Description: connect multiple JBL PartyBoost-enabled speakers.8Press articlewhathifi.com/news/jbl-unveils-go-3-xtreme-3-and-clip-4-portable-bluetooth-speakersRead 23 October 2026JBL PartyBoost.

PartyUp3Owner's manualsupport.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOMRead 8 October 2026PartyUp requires up-to-date BOOM app and speaker firmware. BOOM, MEGABOOM, EPICBOOM and HYPERBOOM families supported. No precise maximum imported because maker product pages say over 150.

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

1003Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Store FAQ and What Hi-Fi: link up to 100 other PartyBoost-compatible speakers. Stored 100.8Press articlewhathifi.com/news/jbl-unveils-go-3-xtreme-3-and-clip-4-portable-bluetooth-speakersRead 23 October 2026PartyBoost pairs two speakers for stereo or links up to a hundred of them.

Not available

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.

Yes3Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Store text: wireless Bluetooth streaming from smartphones and tablets.4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: plays music over Bluetooth, with an aux input as the wired option.

Yes1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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

5.13Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Wireless specifications: Bluetooth version 5.1. SoundGuys and What Hi-Fi also say 5.1.4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: Bluetooth 5.1.

5.12Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026

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

SBC4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: Bluetooth 5.1 and only the SBC codec.

Not available

Bluetooth profiles

A2DP 1.3, AVRCP 1.61Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026Specs: Bluetooth profiles A2DP 1.3, AVRCP 1.6.

A2DP1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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.

Yes3Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Store text: wirelessly connect up to 2 smartphones or tablets. SoundGuys confirms two devices at once.4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: connects two devices at once. A third connection replaces both.5Measurementdxomark.comRead 23 October 2026DXOMARK key specifications: Bluetooth (multipoint).6Measurementleclaireur.fnac.com/test/31898-test-labo-jbl-xtreme-3Read 23 October 2026Labo Fnac: two smartphones can connect at the same time. The same lab measured 19 h 26 min of playback, which agrees with the SoundGuys figure.

No5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026Public Music/Outdoors verdict explicitly lists no Bluetooth multi-device pairing.

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

23Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Up to 2 smartphones or tablets at the same time.

Not available

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

Not available

55m1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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

No6Measurementleclaireur.fnac.com/test/31898-test-labo-jbl-xtreme-3Read 23 October 2026Labo Fnac: no Wi-Fi, AirPlay or voice assistant. Bluetooth only.10Reviewdelamar.de/test/jbl-xtreme-3-testRead 23 October 2026Review describes Bluetooth 5.1 only, no Wi-Fi.11Reviewrtings.com/speaker/reviews/jbl/xtreme-3Read 23 October 2026Public header says Wi-Fi: No.

No5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026Public Wi-Fi row explicitly says No.

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.

AJBL Xtreme 3

Connector	Count	Role
USB-C	1	Charging input and power-bank output
USB-A	1	Power-bank output
3.5 mm audio	1	Aux audio input

Source4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: two USB ports, one input/output USB-C and a power-out Type-A, plus a 3.5 mm aux input, all behind a small door.5Measurementdxomark.comRead 23 October 2026DXOMARK: USB-C for charging the speaker and external devices, a USB-A port and a 3.5 mm jack input, behind a rubber cover.

BUltimate Ears EPICBOOM

Connector	Count	Role
USB-C	1	Charging input

Source2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026

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.

No2Maker product pagesupport.jbl.com/in/en/speakers/speakers-portable/XTREME-3-.htmlRead 23 October 2026FAQ: this product does not feature speakerphone or voice assistant functionality as it does not have a microphone.11Reviewrtings.com/speaker/reviews/jbl/xtreme-3Read 23 October 2026Public header says Speakerphone: No and Voice Assistant: No. Locked numeric cells were not read.

Not available

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, Volume up, Volume down, PartyBoost, Combined play, pause and track skip button4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: volume buttons, PartyBoost, a combined play, pause and skip button, illuminated power and Bluetooth buttons and a battery indicator.

Power, Bluetooth pairing, Volume up/down, Play/pause, Next/previous track, Magic Button playlist shortcut, Outdoor Boost, Battery level3Owner's manualsupport.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOMRead 8 October 2026

Companion app

JBL Portable4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: JBL Portable app, formerly JBL Connect.

UE | BOOM2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026

App platforms

iOS, Android4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: JBL Portable app (iOS and Android).

iOS, Android2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026

User firmware updates

Yes4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: the app installs firmware updates.

Yes3Owner's manualsupport.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOMRead 8 October 2026Speaker Updates and PartyUp sections explicitly document OTA updates via the BOOM app.

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

6 of 17 differ

Built-in battery

Yes1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026

Yes1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 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.

15h1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026Specs: maximum music playing time 15 hours. JBL Singapore adds that it depends on volume level and audio content.2Maker product pagesupport.jbl.com/in/en/speakers/speakers-portable/XTREME-3-.htmlRead 23 October 2026Feature list: 15 hours of playtime.

17h1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026Embedded technical specs qualify up to 17 hours at default volume 45%. Actual runtime varies with use, settings and environmental conditions.

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.

36.3Wh3Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Technical specification: battery type Li-ion 36.3Wh. Voltage and mAh are not stated on the page.

22.5Wh2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026Built-in Li-ion rechargeable battery 22.5 Wh. No pack voltage or mAh inferred.

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

Not available

Nominal battery voltage

Not available

Not available

Battery chemistry

Lithium-ion3Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Technical specification: Li-ion.

Lithium-ion1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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

Not available

Not available

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

2.5h3Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Technical specification: battery charge time 2.5 hours with a 20 V / 3 A input. The JBL US spec row says 4.0 hours with no input stated, and Delamar measured 2.5 hours. The US box lists no adapter, so 4.0 hours may apply to a slower source.10Reviewdelamar.de/test/jbl-xtreme-3-testRead 23 October 2026Review: fully charged again in 2.5 hours.

3h2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026About three hours empty to full with USB PD charger rated 15 W or above. Does not establish maximum speaker input power.

Quick charge duration

Not available

Not available

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

Not available

Not available

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

5 V, 9 V, 12 V, 15 V or 20 V at 3 A3Retailer pagejblonlinestore.com/collections/all/products/jbl-xtreme-3Read 23 October 2026Technical specification: power input 5V/9V/12V/15V/20V, 3A.

Not available

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

Not available

Not available

USB Power Delivery charging

Not available

Yes2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026Maker explicitly specifies PD charging adapter, 15 W or above. Recommended adapter voltage list is not treated as speaker input.

Charges other devices

Yes2Maker product pagesupport.jbl.com/in/en/speakers/speakers-portable/XTREME-3-.htmlRead 23 October 2026Feature list: power up with the built-in powerbank.

Not available

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 pagejbl.com/XTREME-3-.htmlRead 23 October 2026Specs: IPX IP67.2Maker product pagesupport.jbl.com/in/en/speakers/speakers-portable/XTREME-3-.htmlRead 23 October 2026IP67 FAQ: submersion in 1 m (3.3 ft) of water for up to 30 minutes and dust resistant.

IP674Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026

Floats

No4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: it does not float, exactly. It survives a plunge but can sink.

Yes4Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026

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

Not available

Yes5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026

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

Not available

1m5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026Public Outdoors verdict attributes one-meter drop/fall tolerance to the maker. Surface and test method not stated.

Carry featuresiPublished handles, straps, carabiners or wheels.

Removable carrying strap with built-in bottle opener, Metal strap loops2Maker product pagesupport.jbl.com/in/en/speakers/speakers-portable/XTREME-3-.htmlRead 23 October 2026Description: convenient carrying strap with built-in bottle opener.4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026Review: metal loops for the strap.

Built-in strap5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026

Measured

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

19.63h4Measurementsoundguys.com/jbl-xtreme-3-review-64427Read 23 October 2026SoundGuys standard battery test: music played continuously with a 75 dB(SPL) maximum output level measured 1 m from the front. Result 19 h 38 min, stored as 19.63. Delamar got about 12 hours at higher volume.

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

91.4dB5Measurementdxomark.comRead 23 October 2026DXOMARK, 2 February 2021, firmware 0.1.3, tested with a Motorola G8 over Bluetooth: SPL at maximum volume in dBA. The highest of the six test signals is 91.4 dBA with correlated pink noise. The others are 87.3 (uncorrelated pink noise), 86.2 (hip-hop), 81.3 (classical), 86.3 (Latin) and 80.1 (Asian pop). The page gives no measuring distance and says maximum volume is somewhat softer on battery, without naming the power source of the table. The value is A-weighted and comes from a pink noise signal.

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

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

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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.

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

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Dimensions and weight

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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.

Width298Height136Depth134mm(11.7 × 5.4 × 5.3 in)1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026Specs: dimensions (Width x Height x Depth) 29.8 x 13.6 x 13.4 cm, so 298 x 136 x 134 mm. The JBL Singapore copy says 298.5 x 136 x 134 mm. Speaker body, no strap.

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

1,970g(4.3 lb)1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026Specs: net weight 1.97 kg. JBL Singapore lists 1.968 kg. SoundGuys weighs 2.68 kg with the strap.

1,979g(4.4 lb)1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

Body materials

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Post-consumer recycled plastic, Recycled polyester fabric4Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026Fabric 100% PCR polyester. Plastic components minimum 59% PCR. Packaging excluded.

Certifications

None of 1 known

FCC IDs

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Other certifications

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In the box

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In the box

JBL Xtreme 3 speaker, JBL Xtreme 3 strap, Quick-start guide, Safety sheet, Warranty card1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026What's in the box: 1 x JBL Xtreme 3 speaker, 1 x strap, 1 x quick-start guide, 1 x safety sheet, 1 x warranty card. No power adapter is listed for the US. The Singapore box also holds an adaptor with a regional plug.

EPICBOOM, Quick start guide (printed inside box)1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026Current US product-page package contents. Maker support says USB-C cable included while product page says not included. Cable is omitted pending package clarification.

Links

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Product page

www.jbl.com/XTREME-3-.html1Maker product pagejbl.com/XTREME-3-.htmlRead 23 October 2026

www.ultimateears.com/en-us/shop/p/epicboom-bluetooth1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

Spec sheet

support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw362d9d7b/pdfs/JBL_Xtreme3_SpecSheet_English.pdf2Maker product pagesupport.jbl.com/in/en/speakers/speakers-portable/XTREME-3-.htmlRead 23 October 2026Documents and Downloads lists the English spec sheet PDF (1.28 MB). The PDF was not opened, because support.jbl.com blocks direct downloads. The same values are in the page spec rows.

support.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOM2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026

Manual

support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9913cd04/pdfs/PA_JBL_Xtreme%203_QSG_Global.pdf2Maker product pagesupport.jbl.com/in/en/speakers/speakers-portable/XTREME-3-.htmlRead 23 October 2026Documents and Downloads lists the multilingual quick start guide PDF (4.12 MB). Not opened. JBL Singapore copies its technical specification.

support.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOM3Owner's manualsupport.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOMRead 8 October 2026Official EPICBOOM online getting-started manual.

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.

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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.

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2years1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026US page embedded specs and compatibility: 2-Year Limited Hardware Warranty.

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