Wireless speakers / Compare

soundcore 2 vs Ultimate Ears WONDERBOOM 4

A

Product A: soundcore

2

41 of 96 known

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B

Product B: Ultimate Ears

WONDERBOOM 4

48 of 96 known

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Every value links to where we found it.

Only differences

Asoundcore 2

BUltimate Ears WONDERBOOM 4

General

5 of 8 differ

Series

Not available

WONDERBOOM1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

A31051Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Owner's manual cover and EU declaration name Model No. A3105. The same model number covers an older and a newer hardware revision.

SR01922Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026

GTIN / EAN

848061063943, 1946440596754Retailer pageamazon.com/dp/B01MTB55WHRead 21 October 2026Item details of the Black listing, model number A3105 and item type name A3105011, give UPC 848061063943 and 194644059675 and GTIN 00848061063943. Only the Black color is stored, so only its codes are stored. Other colors have their own codes.

Not available

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

Not available

26 June 20244Press releasenews.logitech.com/press-releases/news-details/2024/The-Rugged-Ultimate-Ears-EVERBOOM-Superior-Sound-That-Is-Waterproof-Dustproof-and-Floatable/default.aspxRead 8 October 2026

Status

Available4Retailer pageamazon.com/dp/B01MTB55WHRead 21 October 2026Current US listing sells the speaker, ASIN B01MTB55WH, model number A3105.

Available1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 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.

Not available

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

$99.994Press releasenews.logitech.com/press-releases/news-details/2024/The-Rugged-Ultimate-Ears-EVERBOOM-Superior-Sound-That-Is-Waterproof-Dustproof-and-Floatable/default.aspxRead 8 October 2026US launch MSRP $99.99 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.

€49.996Press articlemobiflip.de/anker-soundcore-2/ampRead 13 October 2026Report says the launch price is 49.99 EUR through Amazon in Germany. USD launch reports differ (39.99 USD at Gizchina, about 50 USD at TechRadar), so no USD price is stored.

Not available

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

US4Retailer pageamazon.com/dp/B01MTB55WHRead 21 October 2026Amazon US listing.

US1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

ColoursiThe maker's own colour names

Black4Retailer pageamazon.com/dp/B01MTB55WHRead 21 October 2026Only the Black selection of the listing is stored. Other colors are sold.

Active Black, Joyous Bright, Hyper Pink, Cobalt Blue, Sand1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 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.

Portable4Retailer pageamazon.com/dp/B01MTB55WHRead 21 October 2026Listing says Speaker Type Portable Speaker and the maker title says Portable Bluetooth Speaker.

Portable1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

Audio

9 of 18 differ

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

Stereo4Retailer pageamazon.com/dp/B01MTB55WHRead 21 October 2026Maker title says 12W Stereo Sound and the details say Audio Output Mode Stereo. One physical bar with two drivers.

Stereo1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026Maker describes stereo sound from one physical speaker. Two-speaker Double Up stereo separates left and right between units.

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.

Asoundcore 2

Driver type	Count
Full-range driver	2

Source1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Specifications table lists Driver (full range) 1.5 inch x 2, so two full-range drivers. The 1.5 inch size is not labelled as a diameter, and the Amazon listing gives a different 6 cm driver size, so no diameter is stored.

BUltimate Ears WONDERBOOM 4

Driver type	Count
Active audio driver	2

Source1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026Maker embedded technical specs explicitly list two active drivers and two passive radiators. Diameter omitted because manufacturer support says 34 mm while product page says 40 mm.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

112Maker product pageservice.soundcore.com/article-description/The-Main-Differences-Between-Soundcore-2-and-Soundcore-3-SpeakerRead 21 October 2026Maker support article says Soundcore 2 has dual neodymium drivers and one passive radiator. Amazon's text mentions a spiral bass port, which is not a passive radiator and is not counted. The article is for the original version and the maker says the new version differs only in the Bluetooth chip.

21Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

Rated audio poweriMaker-published total rated continuous audio output. Battery power is used for portable speakers when mains and battery ratings differ. Peak marketing power is separate.

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.

Not available

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.

12W1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Specifications table says Audio output 12W+ with no continuous or peak basis. Impedance is 4 ohm. The Amazon A+ text calls 12 watts peak power, so the basis stays unspecified.

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.

70Hz1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Specifications table says 70 Hz - 20 KHz. No tolerance is stated.

80Hz2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026Speaker Specifications: 80 Hz to 16 kHz at -3 dB. Not a measured reviewer result.

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.

20kHz1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Specifications table says 70 Hz - 20 KHz. No tolerance is stated.

16kHz2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026Speaker Specifications: 80 Hz to 16 kHz at -3 dB.

Signal-to-noise ratio (claimed)

Not available

86dB2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026Speaker Specifications: 86 dB unweighted.

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

No9Measurementrtings.com/speaker/reviews/anker/soundcore-2Read 21 October 2026Review text says the speaker does not offer any sound customization features.

No5Reviewrtings.com/speaker/reviews/ultimate-ears/wonderboom-4Read 8 October 2026Public verdict: no custom EQ. Outdoor and Podcast presets are stored separately in sound_modes.

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

Not available

Not available

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

Standard, Outdoor Boost, Podcast1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Manual describes True Wireless Stereo pairing of two SoundCore 2 speakers with separate left and right channels. Support says an old and a new revision cannot be paired with each other.12Maker product pageservice.soundcore.com/article-description/The-Main-Differences-Between-Soundcore-2-and-Soundcore-3-SpeakerRead 21 October 2026Maker support article says Soundcore 2 supports TWS and can pair with 2 speakers. Old and new versions cannot be paired with each other.

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Not available

Double Up1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Not available

21Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

7 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.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Bluetooth Pairing section pairs a phone, and the AUX section says to remove the cable to return to Bluetooth mode.

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Not available

5.22Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026

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

Not available

Not available

Bluetooth profiles

Not available

A2DP1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 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.

Not available

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Not available

21Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

20m1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Specifications table says Range 20 m / 66 ft.

40m1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

No9Measurementrtings.com/speaker/reviews/anker/soundcore-2Read 21 October 2026Public summary at the top of the review says Wi-Fi No.

No5Reviewrtings.com/speaker/reviews/ultimate-ears/wonderboom-4Read 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

No2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026USB-C cable is explicitly for charging only.

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.

Asoundcore 2

Connector	Count	Role
3.5 mm audio	1	AUX audio input

Source1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026AUX section says Connect via AUX and that the SoundLine AUX cable is sold separately. The manual does not name the connector size. TechRadar, SoundGuys and the maker's support article name an aux input, and TechRadar and SoundGuys call it 3.5 mm. The charging port is not stored. It is micro USB on the original units. Amazon US reviews from 2026 describe a newer unit with a USB-C port.7Spec databasesoundguys.com/product/anker-soundcore-anker-2Read 21 October 2026Specs list Connection Type Bluetooth and wired-aux-3.5mm, and Charging Method Micro-USB.8Reviewtechradar.com/reviews/anker-soundcore-2Read 21 October 2026Review says a water resistant flap on the side protects the microUSB charging port and the 3.5mm aux port.12Maker product pageservice.soundcore.com/article-description/The-Main-Differences-Between-Soundcore-2-and-Soundcore-3-SpeakerRead 21 October 2026Maker support article says Soundcore 2 has a Micro-USB port and an AUX-in port, and Soundcore 3 has USB-C. It also says Soundcore 2 has no app support. Amazon US reviews describe a newer unit with USB-C, so only the AUX input is stored.

BUltimate Ears WONDERBOOM 4

Connector	Count	Role
USB-C	1	Charging input only

Source2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 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.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Controls table documents answer, end, reject, hold and transfer of calls between speaker and phone. What Hi-Fi confirms a built-in microphone.

No5Reviewrtings.com/speaker/reviews/ultimate-ears/wonderboom-4Read 8 October 2026Public Voice Assistant verdict explicitly says no built-in microphone.

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.

Siri, Google Assistant1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Controls table says press and hold for 1 second activates Siri or other voice control software. This runs through the connected phone. Google Assistant is named by What Hi-Fi.5Reviewwhathifi.com/reviews/anker-soundcore-2Read 13 October 2026Review of 10 May 2019 says the built-in microphone talks to Siri, Google Assistant or makes hands-free calls.

Not available

Controls

Power, Bluetooth pairing, Play/pause, Next track, Volume up/down, Answer/end call, Voice assistant1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Controls table: press for play/pause, double press for skip forward, press for volume up/down, call handling and voice assistant. Power and Bluetooth pairing buttons are in the pairing and power sections.

Power, Bluetooth pairing, Volume up/down, Play/pause, Next track, Outdoor Boost/Podcast mode, Double Up, Battery level3Owner's manualsupport.logi.com/hc/en-us/articles/17139116395031-Getting-Started-UE-WONDERBOOM-4Read 8 October 2026Manual Power, Control Music, Explore our EQ Modes, Double Up and Check Battery Level sections. Double Up works with WONDERBOOM 3 or 4, excluding other BOOM families.

Companion app

Not available

Not available

App platforms

Not available

Not available

User firmware updates

Not available

Not available

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

5 of 17 differ

Built-in battery

Yes3Maker product pageca.soundcore.com/products/soundcore-2-portable-bluetooth-speakerRead 13 October 2026Maker text names a built-in 5,200mAh Li-ion battery. No user replacement is documented.

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 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.

24h1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Specifications table says Play time up to 24 hours, varies by volume level and content.

14h1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026Up to 14 hours between charges. Actual runtime varies with use, settings and environmental conditions. Volume not stated.

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.

Not available

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.

5,200mAh3Maker product pageca.soundcore.com/products/soundcore-2-portable-bluetooth-speakerRead 13 October 2026Maker text says a 5,200mAh Li-ion battery for 24 hours. The iFixit replacement guide (https://ifixit.com/Guide/Anker+SoundCore+2+Battery+Replacement/140279) describes two 2600 mAh 18650 cells in series at 7.4 V, so 5,200 mAh looks like the sum of both cells and not a series-pack rating. No nominal voltage is published, so none is stored.

2,100mAh2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026Built-in Li-ion rechargeable battery 2100 mAh. Pack voltage and energy are not published.

Nominal battery voltage

Not available

Not available

Battery chemistry

Lithium-ion3Maker product pageca.soundcore.com/products/soundcore-2-portable-bluetooth-speakerRead 13 October 2026Maker text says Li-ion.

Lithium-ion1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 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.

3h1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Specifications table says Charging time 3 hours. Charger and simultaneous use are not stated.

3h2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026About three hours from empty to full with a 10 W or higher charger. Adapter recommendation 5 V/2 A is not treated as speaker input.

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 DC at 2 A1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Specifications table says Input 5V 2A.

Not available

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

10W2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3105QSG.pdfRead 21 October 2026Quick Start Guide V2 says the power delivered by the charger must be between min 0.1 W required by the radio equipment and max 10 W in order to achieve the maximum charging speed. It matches the Input 5V 2A line. The guide covers the new version, where the 7th digit of the serial number is C.

Not available

USB Power Delivery charging

Not available

Not available

Charges other devices

No4Retailer pageamazon.com/dp/B01MTB55WHRead 21 October 2026The maker's comparison table on the listing shows Charge Out with a cross for the soundcore 2 and AuX in with a tick. The same listing has a generic attribute Smartphone-Charging under Additional Features, which does not fit a speaker with only a charging input and an aux input, so it is not used.

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

5 of 5 differ

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

IPX71Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Specifications table says Waterproof rating IPX 7. TechRadar and Android Central call it IPX5, which is the 2017 launch wording and is not used.

IP671Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

Floats

Not available

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Not available

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Not available

1.5m1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026Maker publishes a 1.5 m drop test, also described as five feet. Test surface not specified.

Carry featuresiPublished handles, straps, carabiners or wheels.

Not available

Bungee loop1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

Measured

1 of 6 differ

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

15h9Measurementrtings.com/speaker/reviews/anker/soundcore-2Read 21 October 2026Public review text says its 15-hour battery life. The detailed result is members-only. RTINGS battery method on its test page, read 2026-10-21: fully charged, a track on loop at 80 dB SPL at 1 m until the speaker stops. Review dated 2021-01-22 and tested with Methodology v0.8. RTINGS tested the Black unit and also an Upgraded unit, and the text does not say which one gave the 15 hours. Firmware is not stated. The maker's 24 hours is up to and varies with volume, and 80 dB SPL at 1 m is a high listening level.

13h5Reviewrtings.com/speaker/reviews/ultimate-ears/wonderboom-4Read 8 October 2026Public review Outdoors verdict and Music pros report 13 hours battery life for the tested WONDERBOOM 4. Test bench 1.0.1. Numeric member-only tables were not read. Volume, EQ mode, codec, firmware and source device are not stated in the public prose.

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.

Width165Height54Depth45mm(6.5 × 2.1 × 1.8 in)4Retailer pageamazon.com/dp/B01MTB55WHRead 21 October 2026Measurements say Item Dimensions D x W x H 1.77 in x 6.5 in x 2.13 in. This matches SoundGuys at 45 x 165 x 54 mm. The manual lists 168 x 47 x 56 mm without axis labels, so it is not used for the axes.7Spec databasesoundguys.com/product/anker-soundcore-anker-2Read 21 October 2026Specs list Dimensions Width 165 mm, Height 54 mm, Depth 45 mm. The same page lists Weight 400 g, which differs from the maker's 414 g and is not used.8Reviewtechradar.com/reviews/anker-soundcore-2Read 21 October 2026Review of the 2017 launch unit says it measures 165mm x 54mm x 45mm.

Not available

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

414g(14.6 oz)1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026Specifications table says Weight 414 g / 14.6 oz. The manual size tuple 168 x 47 x 56 mm has no axis labels, so no dimensions are stored.

420g(14.8 oz)1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

Body materials

Plastic, Rubber coating, Metal grille4Retailer pageamazon.com/dp/B01MTB55WHRead 21 October 2026Additional details say Enclosure Material Plastic.8Reviewtechradar.com/reviews/anker-soundcore-2Read 21 October 2026Review says the body is coated in grippy matte black rubber and the front has a black metal grille that hides two 6-watt drivers.

Post-consumer recycled plastic, Recycled polyester fabric4Press releasenews.logitech.com/press-releases/news-details/2024/The-Rugged-Ultimate-Ears-EVERBOOM-Superior-Sound-That-Is-Waterproof-Dustproof-and-Floatable/default.aspxRead 8 October 2026WONDERBOOM 4 plastic components minimum 31% PCR by weight. Fabric is 100% PCR polyester. Packaging excluded.

Certifications

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FCC IDs

2AOKB-A3105, 2AOKB-A3105C10Regulatory filingfccid.io/2AOKBA3105Read 21 October 2026FCC ID 2AOKB-A3105, SoundCore 2, Anker Innovations Limited, grantee code 2AOKB and product code A3105. Mirror of the FCC database. Latest application 2023-08-24 for 2402 to 2480 MHz.11Regulatory filingfccid.io/2AOKBA3105CRead 21 October 2026FCC ID 2AOKB-A3105C, SoundCore 2, Anker Innovations Limited, original equipment grant 2025-09-29. It is the filing for the newer revision, which the Quick Start Guide V2 marks with a C as the 7th digit of the serial number.

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Other certifications

EU Declaration of Conformity (Radio Equipment Directive 2014/53/EU), EU RoHS Directive 2011/65/EU1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026EU declaration on the manual says Anker Innovations Limited declares that radio equipment type A3105 is in compliance with Directive 2014/53/EU.2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3105QSG.pdfRead 21 October 2026Quick Start Guide V2 says Anker Innovations Limited declares that this product is in compliance with Directives 2014/53/EU and 2011/65/EU and amendment (EU) 2015/863.

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In the box

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In the box

Speaker, Power cable, Quick Start Guide4Retailer pageamazon.com/dp/B01MTB55WHRead 21 October 2026What's in the box: speaker, power cable, Quick Start Guide. The listing title says Bluetooth 6, which is the newer revision. The 2020 manual says Bluetooth 5.0, so no Bluetooth version is stored.

WONDERBOOM 4, Bungee loop (attached), Quick start guide (printed inside box)1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026US product page embedded Package Contents. No USB-C cable included. Support text generically says cable included and conflicts with this reference package.

Links

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Product page

ca.soundcore.com/products/soundcore-2-portable-bluetooth-speaker3Maker product pageca.soundcore.com/products/soundcore-2-portable-bluetooth-speakerRead 13 October 2026Maker's Canadian product page. The US maker page did not load for this model. The page shows the product as sold out.

www.ultimateears.com/en-us/shop/p/wonderboom-41Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

Spec sheet

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support.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-42Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026

Manual

salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdf1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000004369/en_US/000004369.pdfRead 21 October 2026

support.logi.com/hc/en-us/articles/17139116395031-Getting-Started-UE-WONDERBOOM-43Owner's manualsupport.logi.com/hc/en-us/articles/17139116395031-Getting-Started-UE-WONDERBOOM-4Read 8 October 2026Maker online getting-started manual for exact WONDERBOOM 4.

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.

1.5years2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3105QSG.pdfRead 21 October 2026Quick Start Guide V2 (PDF created April 2026) lists an 18-month limited warranty, so 1.5 years. The Amazon US listing also says 18 months. It repeats Input 5V 2A, charging time 3 hours and playtime up to 24 hours.

2years1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026US page embedded specs and compatibility: 2-Year Limited Hardware Warranty.

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