Wireless speakers / Compare

JBL Xtreme 3 vs Marshall Middleton II

A

Product A: JBL

Xtreme 3

53 of 96 known

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B

Product B: Marshall

Middleton II

51 of 96 known

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Only differences

AJBL Xtreme 3

BMarshall Middleton II

General

4 of 8 differ

Series

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

Not available

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.

1007428, 1007429, 10096441Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026US store page. Product ids in the page data: 1007428 Black and Brass, 1007429 Cream and 1009644 Black and Brass sold on the US store. The EU stores sell 1007428.2Maker product pagemarshall.com/de/de/product/middleton-iiRead 11 October 2026German store sells 1007428 Black and Brass and 1007429 Cream.

GTIN / EAN

Not available

7340055404594, 7340055404617, 73400554203721Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026EAN values in the store page data: 1007428 is 7340055404594, 1007429 is 7340055404617, 1009644 is 7340055420372. Read from the German and US store pages.2Maker product pagemarshall.com/de/de/product/middleton-iiRead 11 October 2026EAN 7340055404594 for 1007428 and 7340055404617 for 1007429 in the store page data.

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).

1 July 20255Press releasegroup.marshall.com/2025/07/01/marshall-reveals-their-latest-portable-powerhouse-middleton-iiRead 11 October 2026Press release dated 2025-07-01: Middleton II launches globally today on Marshall.com.

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 pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Offered for sale on the maker store in 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

Marshall Middleton10Reviewtomsguide.com/audio/bluetooth-speakers/marshall-middleton-ii-reviewRead 11 October 2026Tom's Guide calls the Middleton II the successor to the original Marshall Middleton.14Reviewengadget.com/audio/speakers/marshalls-new-middleton-ii-bluetooth-speaker-lasts-30-hours-between-charges-164354372.htmlRead 23 October 2026Engadget calls the Middleton II a direct replacement for the first-generation Middleton from 2023.

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.

$329.991Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026US store price $329.99, before US sales tax. TechRadar gives the same list price at launch in July 2025.9Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-middleton-ii-reviewRead 11 October 2026List price $329.99 / 259.99 GBP / AU$499, released July 2025.

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.

€2992Maker product pagemarshall.com/de/de/product/middleton-iiRead 11 October 2026German store price 299 EUR including VAT. Kopfhoerer.de reports the same 299 EUR launch price on 2025-07-01.8Press articlekopfhoerer.de/news/marshall-middleton-iiRead 11 October 2026News of 2025-07-01: available from 1 July 2025 for 299 EUR on marshall.com, retail from 15 July.

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 pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026US store page and US launch price.

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).

Black and Brass, Cream1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Colourways: Black and Brass, Cream.

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 pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Marshall lists it as a portable speaker.

Audio

9 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.

Stereo1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Stereo/mono: Stereo. Sound channels of one speaker, not a paired set.

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.

BMarshall Middleton II

Driver type	Count	Diameter (mm)
Woofer	2	76.2
Tweeter	2	15.24

Source1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Drivers: 2 x 3 inch woofer, 2 x 0.6 inch tweeter, 2 passive radiators. Sizes converted exactly to mm. The page lists amplifier ratings only, so no per-driver power is stored.

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.

21Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 20262 passive radiators.

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

80W12Press articlewhathifi.com/speakers/wireless-speakers/marshalls-second-gen-middleton-speaker-aims-for-a-sound-thats-fit-for-royaltyRead 11 October 2026Launch article: 60 watts of Class D amplification for the twin 7.6 cm woofers and 20 watts for the pair of 15 mm tweeters. The maker lists four amplifiers, 2 x 30 W and 2 x 10 W. The 80 W total is the sum of these amplifier ratings, and a spec database also lists 80 W. No continuous, RMS or peak basis is stated, so it goes in the unspecified-rating field.13Spec databasefrontum.co.uk/portable-speakers/marshall-middleton-iiRead 11 October 2026Spec database lists audio output power 80 W. It also lists a 45 Hz lowest frequency, which conflicts with the maker's 50 Hz and is not used.

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.

50Hz1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Frequency range 50Hz - 20kHz. Tolerance and mode are not stated. One database lists 45 Hz, which is not used.

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.

20kHz1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Frequency range 50Hz - 20kHz. Tolerance and mode are not stated.

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 pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Page: bass and treble controls on the top panel and in the Marshall Bluetooth app. The Abt spec sheet states an equaliser in the app.7Maker spec sheet (PDF)content.abt.com/documents/174754/marshall-portable-bluetooth-speaker-1007428-spec-sheet-1.pdfRead 11 October 2026Maker spec sheet hosted by a retailer: equaliser yes, bass and treble on units and equaliser in app.

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.

59Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-middleton-ii-reviewRead 11 October 2026The Marshall Bluetooth app has a five-band equalizer and a small set of presets. Tom's Guide and HeadphoneCheck also state five bands.10Reviewtomsguide.com/audio/bluetooth-speakers/marshall-middleton-ii-reviewRead 11 October 2026The app can update firmware, check battery life and adjust the 5-band EQ.

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

Not available

Not available

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

Not available

Not available

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.

No9Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-middleton-ii-reviewRead 11 October 2026Review says it would have liked multi-speaker pairing, which is available on some other Marshall models. The page and manual list no pairing feature. Review also says there is no placement compensation.

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.

Not available

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

8 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 pagemarshall.com/us/en/product/middleton-iiRead 11 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.

5.31Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Wireless connectivity: Bluetooth 5.3.

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.

SBC, AAC, LC31Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Codecs: SBC, AAC-mpeg 2 and LC3. Receive codecs.

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.

Not available

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

Not available

Yes5Press releasegroup.marshall.com/2025/07/01/marshall-reveals-their-latest-portable-powerhouse-middleton-iiRead 11 October 2026Product manager quote: with support for LE Audio, listeners can enjoy a more efficient and enhanced listening experience.8Press articlekopfhoerer.de/news/marshall-middleton-iiRead 11 October 2026Article states the Bluetooth speaker supports LE Audio.

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

Not available

Yes9Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-middleton-ii-reviewRead 11 October 2026Features: Auracast connectivity. The app can tune into a live broadcast via Auracast. Receiving role.11Reviewheadphonecheck.com/test/marshall-middleton-iiRead 11 October 2026Review says the speaker is Auracast-enabled and the app can search for Auracast broadcasts.

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.

Yes1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Bluetooth Multipoint Connectivity: Yes.

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.

23Owner's manualassets.ctfassets.net/javen7msabdh/52ltpkI3c7wiY1XvINbpPD/bf15b800425c3408d16fc26bed07601d/Marshall_Middlton_II_OLM_R1_5_Combined.pdfRead 11 October 2026Pairing a new device: can be connected with 2 devices at a time and remembers up to 8 previously paired devices.

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

Not available

60m1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Bluetooth range 60 m, 200 ft.

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.

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

USB audio file formats

Not available

Not available

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

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.

BMarshall Middleton II

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

Source1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Wired connectivity AUX 3.5mm. Power input USB-C. The USB-C power output role is the charging bank feature.

Controls and software

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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.

Yes1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Microphone system: Yes. Built-in microphone for hands-free calls.

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.

Multidirectional control knob for play/pause, track skip, volume and calls, Power button, Bluetooth pairing button, Bass control, Treble control, 10-segment battery indicator3Owner's manualassets.ctfassets.net/javen7msabdh/52ltpkI3c7wiY1XvINbpPD/bf15b800425c3408d16fc26bed07601d/Marshall_Middlton_II_OLM_R1_5_Combined.pdfRead 11 October 2026Device layout: power button, Bluetooth button, 10 segment battery indicator, control knob, microphone, bass and treble control. Knob: push for play/pause and calls, left/right to skip, up/down for volume.

Companion app

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

Marshall Bluetooth1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Compatible apps: Marshall Bluetooth app.

App platforms

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

iOS, Android3Owner's manualassets.ctfassets.net/javen7msabdh/52ltpkI3c7wiY1XvINbpPD/bf15b800425c3408d16fc26bed07601d/Marshall_Middlton_II_OLM_R1_5_Combined.pdfRead 11 October 2026Page 9 offers the Marshall Bluetooth app and the closing page names Google Play and the App Store.10Reviewtomsguide.com/audio/bluetooth-speakers/marshall-middleton-ii-reviewRead 11 October 2026Spec table compatibility: iOS, Android, Bluetooth and 3.5 mm wired devices.

User firmware updates

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

Yes3Owner's manualassets.ctfassets.net/javen7msabdh/52ltpkI3c7wiY1XvINbpPD/bf15b800425c3408d16fc26bed07601d/Marshall_Middlton_II_OLM_R1_5_Combined.pdfRead 11 October 2026Troubleshooting: connect to the Marshall Bluetooth app and follow the in-app instructions to get the latest firmware.

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

Not available

Not available

Lighting modes

Not available

Not available

Smart home

None of 3 known

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Battery and charging

8 of 17 differ

Built-in battery

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

Yes1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Rechargeable Li-ion battery. The page says replaceable, but no user replacement procedure is published, so replaceable_battery is not stored.

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.

30h1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Play time 30+ hours, stored as 30. The legal notice states play time is calculated with a random selection of music at medium volume.

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.

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.

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Nominal battery voltage

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Battery chemistry

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

Lithium-ion1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Battery type: Rechargeable, replaceable, Li-ion battery.

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.

3h1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 20263 hours to full recharge. Charger rating is not stated for this figure.

Quick charge duration

Not available

20min1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Quick charging: 20 minutes gives 5 hours of playtime.

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

Not available

5h1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 202620 minutes gives 5 hours of playtime.

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.

USB-C, 5 V / 9 V / 12 V / 20 V at 3 A1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Power input: USB-C 5V/9V/12V/20V-3A.

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

Not available

31.6W4Maker spec sheet (PDF)assets.ctfassets.net/javen7msabdh/2ed2WkyZQKGwrdTnX9IQsq/a34297273e818f93e2e047fd6a03e43e/Middleton_II_-_Legal_and_safety_-_2025-12-08_R1.2_CN.pdfRead 11 October 2026Charger power must be between a minimum of 12.8 W required by the radio equipment and a maximum of 31.6 W to achieve the maximum charging speed. Stored as the maximum charging input.

USB Power Delivery charging

Not available

Yes4Maker spec sheet (PDF)assets.ctfassets.net/javen7msabdh/2ed2WkyZQKGwrdTnX9IQsq/a34297273e818f93e2e047fd6a03e43e/Middleton_II_-_Legal_and_safety_-_2025-12-08_R1.2_CN.pdfRead 11 October 2026This product supports USB PD fast charging. Multi-language legal notice, English text.

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.

Yes1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Features: charging bank, use the speaker to charge your phone on the go. The manual requires more than 20% battery charge.

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

Not available

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

Not available

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Durability

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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.

IP671Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026IP67: protected against dust and sand, tested to work after 30 minutes in 1 m of water.

Floats

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

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

Not available

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

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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.

Carry strap3Owner's manualassets.ctfassets.net/javen7msabdh/52ltpkI3c7wiY1XvINbpPD/bf15b800425c3408d16fc26bed07601d/Marshall_Middlton_II_OLM_R1_5_Combined.pdfRead 11 October 2026Carrying strap hinge and an included carrying strap.

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.

Not available

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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.

Width230Height110Depth98mm(9.1 × 4.3 × 3.9 in)1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Physical unit: width 230 mm, height 110 mm, depth 98 mm. The page spec box prints L230*W98*H110 mm and also labels width, height and depth separately with the same values.

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.

1,800g(4 lb)1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Weight 1.8 kg / 3.9 lbs.

Body materials

Not available

Silicone sleeve, Tolex covering3Owner's manualassets.ctfassets.net/javen7msabdh/52ltpkI3c7wiY1XvINbpPD/bf15b800425c3408d16fc26bed07601d/Marshall_Middlton_II_OLM_R1_5_Combined.pdfRead 11 October 2026Cleaning section: the silicone sleeve can be removed and cleaned separately.11Reviewheadphonecheck.com/test/marshall-middleton-iiRead 11 October 2026Review describes Marshall's signature snakeskin-style Tolex covering. TechRadar calls it faux leather.

Certifications

None of 1 known

FCC IDs

Not available

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Other certifications

Not available

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In the box

1 of 1 differ

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.

Middleton II speaker, Carry strap, USB-C charging cable, Quick start guide, Legal and safety information1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Box contents: speaker, strap, USB-C charging cable, quick start guide, legal and safety information.

Links

Not compared

Product page

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

www.marshall.com/us/en/product/middleton-ii1Maker product pagemarshall.com/us/en/product/middleton-iiRead 11 October 2026Maker's product page for Middleton II.

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.

Not available

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.

assets.ctfassets.net/javen7msabdh/52ltpkI3c7wiY1XvINbpPD/bf15b800425c3408d16fc26bed07601d/Marshall_Middlton_II_OLM_R1_5_Combined.pdf3Owner's manualassets.ctfassets.net/javen7msabdh/52ltpkI3c7wiY1XvINbpPD/bf15b800425c3408d16fc26bed07601d/Marshall_Middlton_II_OLM_R1_5_Combined.pdfRead 11 October 2026Full online manual R1.5, English on pages 3 to 12. Combined PDF with 40 languages.

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.

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