Wireless speakers / Compare

Bose SoundLink Flex Bluetooth Speaker vs Sonos Roam 2

A

Product A: Bose

SoundLink Flex Bluetooth Speaker

40 of 96 known

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B

Product B: Sonos

Roam 2

52 of 96 known

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All 96 fields

Every value links to where we found it.

Only differences

ABose SoundLink Flex Bluetooth Speaker

BSonos Roam 2

General

5 of 8 differ

Series

SoundLink2Maker product pagebose.ca/en/p/bose-soundlink-flex-bluetooth-speaker/SLFLX-SPEAKERWIRELESS-WHTSM-WW.htmlRead 13 October 2026Bose lists the speaker in its SoundLink family of portable Bluetooth speakers. iFixit lists the same family.

Roam13Maker product pagesupport.sonos.com/en/article/charging-sonos-roam-productsRead 8 October 2026Maker groups Roam, Roam SL and Roam 2 under Charging Sonos Roam products. Series is Roam, while the marketed generation and sale SKU remain Roam 2 / ROAM2US1BLK. Support only describes charging to 50%, so no full-charge time is extrapolated.

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

865983-0100, 4359101Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Regulatory section of the owner's guide lists Type designation 435910 for the Bluetooth speaker. SoundGuys lists 865983-0100 for the US Black item.3Reviewsoundguys.com/bose-soundlink-flex-review-63268Read 13 October 2026Review lists Model Number 865983-0100, the US Black item.

ROAM2US1BLK, S271Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026Exact current US Black Roam 2 ProductGroup JSON-LD variant names SKU ROAM2US1BLK, GTIN13 8720862502680 and InStock offer. S27 is the separate shared regulatory model, sourced to the maker declaration. Original Roam, Roam SL, charging set and other colour SKUs are excluded.12Maker spec sheet (PDF)sonos.com/pdfs/conformity/roam2.pdfRead 8 October 2026Maker EU declaration dated July 22, 2025 explicitly lists ROAM, ROAM SL and ROAM2 under shared regulatory Model S27. S27 is a regulatory family identity, not a claim that their features or sale SKUs are interchangeable.

GTIN / EAN

Not available

87208625026801Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026

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

Not available

Not available

Status

Not available

Available1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 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.

Bose SoundLink Flex Portable Speaker (2nd Gen)8Reviewsoundguys.com/bose-soundlink-flex-2nd-gen-review-125253Read 13 October 2026Review calls the SoundLink Flex (2nd Gen) the follow-up to the original SoundLink Flex that came out in 2021. The 2nd Gen has Bluetooth 5.3 and the Bose app.

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.

$1493Reviewsoundguys.com/bose-soundlink-flex-review-63268Read 13 October 2026Review lists an original price of 149 USD. T3 and What Hi-Fi also give 149 USD. Tax treatment is not stated.

$1793Maker spec sheet (PDF)assets.sonos.com/media-kits/hardware/roam2/roam2factsheet.pdfRead 8 October 2026Exact launch fact sheet lists USD 179 and EUR 199 for Roam 2. Normal product, not a wireless charger bundle. US sales-tax treatment is not stated.

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

Not available

€1993Maker spec sheet (PDF)assets.sonos.com/media-kits/hardware/roam2/roam2factsheet.pdfRead 8 October 2026Original normal Roam 2 launch EUR 199. VAT treatment is not explicitly described in the fact sheet.

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

US3Reviewsoundguys.com/bose-soundlink-flex-review-63268Read 13 October 2026US price in USD and the US Black model number 865983-0100.

US1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026

ColoursiThe maker's own colour names

Not available

Black1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 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.

Portable7Spec databaseifixit.com/Device/SoundLink_FlexRead 13 October 2026iFixit describes a portable Bluetooth speaker.

Portable1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026

Audio

7 of 18 differ

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

Not available

Mono5Reviewsoundguys.com/sonos-roam-2-review-119162Read 8 October 2026Exact Roam 2 review explicitly identifies mono playback in one speaker. Two drivers are frequency-specific transducers, not two stereo channels.

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.

ABose SoundLink Flex Bluetooth Speaker

Driver type	Count
Full-range dynamic driver	1

Source6Reviewt3.com/us/reviews/bose-soundlink-flex-reviewRead 13 October 2026Review says the driver array is a single full-range dynamic driver. Bose does not publish its size or power.

BSonos Roam 2

Driver type	Count
Tweeter	1
Elliptical midwoofer	1

Source1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026One powered tweeter and one powered midwoofer with two Class-H amplifiers. Maker gives no transducer dimensions or continuous amplifier watts. No passive radiator count is inferred from this powered-driver inventory.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

26Reviewt3.com/us/reviews/bose-soundlink-flex-reviewRead 13 October 2026Review says the single driver is supplemented by a couple of racetrack passive radiators, so two.

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.

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.

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.

Not available

Not available

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.

Not available

Not available

Signal-to-noise ratio (claimed)

Not available

Not available

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

No5Reviewtomsguide.com/audio/bluetooth-speakers/bose-soundlink-flex-reviewRead 13 October 2026Review lists no customizable EQ as a con. T3 also says there is no EQ in the app.

Yes1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026User can adjust bass and treble. Loudness is a separate setting, not a third frequency band. Automatic Trueplay is separate from these manual adjustments.

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

Not available

25Reviewsoundguys.com/sonos-roam-2-review-119162Read 8 October 2026Review and pictured app explicitly identify a 2-band adjustable EQ, bass and treble. Loudness toggle and Auto Trueplay are not additional user-adjustable frequency bands.

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

Yes4Reviewwhathifi.com/reviews/bose-soundlink-flexRead 13 October 2026Review says PositionIQ technology uses built-in sensors to detect the speaker's orientation and adjusts the sound to it.

Yes1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026Automatic Trueplay adapts audio to environment/content. It must initially be enabled in the Sonos app. Current manual says microphone enabled and registered speaker are required. Bluetooth and Wi-Fi operation are supported after setup.2Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026Trueplay adapts to environment/content and requires registration and microphones enabled. No setting is inferred from speaker orientation alone.

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.

Yes1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Owner's guide (PDF created March 2024) describes Stereo mode with a second compatible speaker: SoundLink Micro, Flex, Color II, Revolve and Revolve+ (Series I and II). It does not work with the 2nd Gen Flex, which uses a different app.

Yes2Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026Two compatible Roam 2 speakers can be assigned left/right channels through the Sonos app on Wi-Fi. Maker exact pairing support clarifies Bluetooth playback can feed that pair only while connected to Wi-Fi. Standalone Bluetooth-only stereo pairing away from Wi-Fi is not supported.4Maker product pagesupport.sonos.com/article/pair-sonos-roam-2-with-a-bluetooth-deviceRead 8 October 2026Exact Roam 2 pairing support explicitly says two Roam 2s in a stereo pair can play Bluetooth audio when connected to Wi-Fi. Stereo pairing is unavailable away from Wi-Fi. This prevents implying a Bluetooth-only stereo pair.

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

Bose Party Mode, Bose Stereo Mode, Bose SimpleSync1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Party mode and Stereo mode for two Bose Bluetooth speakers, and SimpleSync to link with a Bose Smart Speaker or Soundbar through the Bose app.

Sonos multiroom over Wi-Fi2Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026Sonos app network grouping of Roam 2 with other compatible Sonos products. Sound Swap transfers playback to a nearby product. This is Wi-Fi ecosystem linking, not Auracast or a published maximum group-size claim.

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

21Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide says pair two Bose Bluetooth speakers for Party mode or Stereo mode. SimpleSync pairs with only one Bose product at a time.

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

11 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.

Yes3Reviewsoundguys.com/bose-soundlink-flex-review-63268Read 13 October 2026

Yes5Reviewsoundguys.com/sonos-roam-2-review-119162Read 8 October 2026

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

4.23Reviewsoundguys.com/bose-soundlink-flex-review-63268Read 13 October 2026Review says Bluetooth 4.2 with the SBC codec only. Bose 2nd Gen coverage also says the original uses Bluetooth 4.2.

5.32Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026Current exact Roam 2 guide explicitly claims Bluetooth 5.3. This current manual claim takes precedence under the repository maker-document hierarchy. The current shop Tech Specs says 5.2 and original launch fact sheet says 5.0. Discrepancy is retained here, with no inferred hardware revision, update date or firmware bridge.

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

SBC3Reviewsoundguys.com/bose-soundlink-flex-review-63268Read 13 October 2026Review says only the standard SBC codec is supported. This is a reviewer statement and not a maker document.

SBC, AAC5Reviewsoundguys.com/sonos-roam-2-review-119162Read 8 October 2026Matching Roam 2 review explicitly identifies SBC and AAC receive codecs. No aptX, LDAC, LC3 or LE Audio reception is inferred from the claimed Bluetooth version. Original Roam standardized battery-test values are not transferred to Roam 2.

Bluetooth profiles

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Yes1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide says the speaker can be actively connected to two devices at a time and plays audio from one device at a time.

No6Reviewrtings.com/speaker/reviews/sonos/roam-2Read 8 October 2026

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

21Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Up to two actively connected devices. Up to eight devices are stored in the pairing list.

16Reviewrtings.com/speaker/reviews/sonos/roam-2Read 8 October 2026Public Podcasts overview states only one audio source can pair at a time, and public discussion identifies lack of concurrent multi-device support. Stored 1 counts concurrent Bluetooth source devices, not Wi-Fi grouping or pairing memory. Protected numerical latency, battery, frequency-response and SPL tables were not read or copied. Public roughly five-hour battery prose lacks the needed complete test conditions and is not presented as a precise measured value.

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

9m1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide gives a Bluetooth range of 30 ft or 9 m.

Not available

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

Not available

Yes2Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026

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

Not available

802.11a, 802.11b, 802.11g, 802.11n, 802.11ac2Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026Current exact guide publishes 802.11a/b/g/n/ac on 2.4 or 5 GHz. Original launch fact sheet omits 802.11a. The current exact manual wins. No 6 GHz or Wi-Fi 6 feature is inferred.

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

AirPlay 22Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026Apple AirPlay 2 over Wi-Fi, Apple iOS 11.4 or higher. Sonos multiroom linking is separately represented, not an assumed Bluetooth broadcast protocol.

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

Not available

No8Reviewhifi.de/test/sonos-roam-2-test-205052Read 8 October 2026Exact Roam 2 connectivity section states music can arrive only wirelessly and USB-C does not allow music playback. Charging input is not USB digital audio.

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

Not available

No8Reviewhifi.de/test/sonos-roam-2-test-205052Read 8 October 2026The same explicit wireless-only source statement excludes USB storage-device music playback. No USB file formats are inferred.

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.

ABose SoundLink Flex Bluetooth Speaker

Connector	Count	Role
USB-C	1	Charging input

Source1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide says charge with the USB-C cable and shows no other connector. SoundGuys confirms there is no aux input.

BSonos Roam 2

Connector	Count	Role
USB-C	1	Charging power input

Source2Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026Complete Roam 2 Connector Panel has separate Bluetooth button, power button and one USB-C charging port. No charging base is counted as a speaker connector. USB port protocol version is not stated.

Controls and software

5 of 8 differ

SpeakerphoneiBuilt-in microphone and call support, through a connected phone or a voice assistant's calling. A microphone used only for voice commands does not count. Microphone inputs for karaoke are separate.

Yes1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide documents answering, ending, declining and muting calls with the built-in microphone.

No7Reviewtechradar.com/audio/wireless-bluetooth-speakers/sonos-roam-2-reviewRead 8 October 2026Exact Roam 2 feature discussion explicitly says it cannot be used as a speakerphone or for conference calls on Bluetooth. Its microphone is for voice control/Trueplay, not phone-call support.

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.

Connected phone voice assistant1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide says the speaker microphone extends the phone's microphone and press and hold of the multi-function button opens the voice assistant on the connected device.

Sonos Voice Control, Amazon Alexa2Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026Current exact guide: Sonos Voice Control on Wi-Fi and Bluetooth, with playback commands limited on Bluetooth. Amazon Alexa works on Wi-Fi. Setup, language and region availability apply. Google Assistant is not claimed.

Controls

Power, Bluetooth pairing, Play/pause, Next/previous track, Volume up/down, Answer/end call, Voice assistant1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide lists Power, Bluetooth, Volume up and down and a multi-function button: press for play/pause and answer/end call, twice for skip forward, three times for skip backward, hold for voice control.

Play/pause, track skip and replay button, Volume up and down buttons, Microphone mute button, Bluetooth pairing button, Power, sleep and wake button1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 20262Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026Roam 2 guide describes play/pause and track controls, volume plus/minus, microphone mute, Bluetooth pairing and independent power/sleep/wake buttons. LED status indicators are not classified as entertainment lighting.

Companion app

Bose Connect1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide names the Bose Connect app for setup, Bluetooth connections and settings. The Bose app is needed for SimpleSync.

Sonos9Maker product pagesupport.sonos.com/en-us/article/sonos-app-requirementsRead 8 October 2026

App platforms

iOS, Android2Maker product pagebose.ca/en/p/bose-soundlink-flex-bluetooth-speaker/SLFLX-SPEAKERWIRELESS-WHTSM-WW.htmlRead 13 October 2026Page says apps are available on Google Play and the Apple Store.

iOS, iPadOS, Android, macOS, Windows9Maker product pagesupport.sonos.com/en-us/article/sonos-app-requirementsRead 8 October 2026Current Sonos app supports iOS/iPadOS and Android mobile devices. Sonos desktop controller supports macOS and Windows with reduced system-management features. Initial setup and adding products require mobile app. Sonos S1 is not the Roam 2 app and its different minimum versions are excluded. Web controller is not counted as a separate native OS app.

User firmware updates

Yes1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide says the speaker receives security updates through the Bose Connect app and software updates can be run in the app.

Yes10Maker product pagesupport.sonos.com/en-us/article/update-your-sonos-speakersRead 8 October 2026Maker provides user system software update checks and automatic updates in the current Sonos iOS/Android app. Roam 2 is a current Sonos network speaker. Wi-Fi/app setup is required for this route, not a standalone Bluetooth update claim.

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

7 of 17 differ

Built-in battery

Yes1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide describes a rechargeable lithium-ion battery that is not to be removed by the user.

Yes1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 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.

12h1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide says with typical usage the battery lasts up to 12 hours and varies with content and volume.

10h1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026Up to 10 hours continuous music playback on one charge at moderate volumes. This is normal playback, not ten-day sleep retention or a battery-saving-mode total. Exact volume, connection, codec and firmware conditions are not specified. Runtime varies with usage.

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

18Wh2Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026Current exact Roam 2 Specifications Battery row explicitly publishes 18 Wh. This is pack energy, not USB input power, sleep duration or a calculation from an assumed voltage.

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

5,000mAh1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026Current exact product Tech Specs explicitly claims a Li-ion 5000 mAh battery. Nominal battery voltage is not published here and is not back-calculated from the separate 18 Wh guide claim.

Nominal battery voltage

Not available

Not available

Battery chemistry

Lithium-ion1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide regulatory text names a rechargeable lithium-ion battery.

Lithium-ion1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 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.

4h1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide says allow up to 4 hours to fully charge the battery. No adapter is included.

Not available

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 1.5 A1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Regulatory section lists Input Rating 5Vdc, 1.5A.

USB-C: 5 V / 3 A port rating1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026Exact speaker USB-C Port table publishes 15 W, 5 V / 3 A. Stored text preserves the device port voltage/current rating. Current guide also gives a 5-12 W charger-delivery range for maximum charging speed and several minimum-adapter recommendations. These are different/unclear bases, so charging_input_max_w is not inferred from either charger advice or the port rating.

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

Not available

Charges other devices

Not available

No7Reviewtechradar.com/audio/wireless-bluetooth-speakers/sonos-roam-2-reviewRead 8 October 2026Exact Roam 2 Design paragraph explicitly says no reverse charging, while describing USB-C charging and Qi reception. Wireless charging reception is not power-bank output.

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

Yes1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026Speaker can be charged with any Qi-certified wireless charger or optional Sonos Roam Wireless Charger. Accessory is sold separately, not supplied.

Durability

3 of 5 differ

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

IP67, IP641Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide says the speaker is rated IP67 and IP64 and can be immersed for up to 30 minutes at a depth of up to 1 m.

IP671Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026Maker IP67 dustproof and waterproof claim, immersion at 1 m for up to 30 minutes. Does not establish floating or a drop-test height.

Floats

Not available

Not available

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

Not available

Yes1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026Exact product features explicitly state Drop resistant and describe shock-absorbing materials protecting against drops. No quantified height or surface is published.

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

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Carry featuresiPublished handles, straps, carabiners or wheels.

Built-in strap1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026Guide says the strap works as a finger loop or attaches to a carabiner or a cord.

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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.

11.98h3Reviewsoundguys.com/bose-soundlink-flex-review-63268Read 13 October 2026Review reports 11 hours 59 minutes, which is 11.98 h, in the standard test: continuous music at a 75 dB (SPL) maximum output level measured 1 m from the front of the speaker. Firmware and codec are not stated.

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

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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.

Width201Height90Depth52mm(7.9 × 3.5 × 2 in)4Reviewwhathifi.com/reviews/bose-soundlink-flexRead 13 October 2026Review spec box lists Dimensions (hwd) 9 x 20.1 x 5.2cm, so height 90 mm, width 201 mm, depth 52 mm. Bose's own inch figures 3.56 H x 7.93 W x 2.06 D as reproduced by iFixit agree.

Width62Height168Depth60mm(2.4 × 6.6 × 2.4 in)1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026Maker labels height 168 mm, width 62 mm, depth 60 mm in upright orientation. Use the explicitly labelled metric axes, not an unlabeled tuple or a review that transposes width and depth.

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

589g(1.3 lb)3Reviewsoundguys.com/bose-soundlink-flex-review-63268Read 13 October 2026Review spec box lists 589g. Bose's own spec as reproduced by iFixit is 1.300 lb.

430g(15.2 oz)1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026Published 0.43 kg speaker mass converts exactly to 430 g. Built-in battery included, packaging, USB cable and optional wireless charging base excluded. Rounded 0.95 lb claim is not converted separately.

Body materials

Aluminum, Fabric, Nylon, Plastic, Silicone, Steel7Spec databaseifixit.com/Device/SoundLink_FlexRead 13 October 2026Product Material Aluminum, Fabric, Nylon, Plastic, Silicone, Steel, as in Bose's own specification.

Silicone end caps3Maker spec sheet (PDF)assets.sonos.com/media-kits/hardware/roam2/roam2factsheet.pdfRead 8 October 2026Maker fact sheet explicitly describes protective silicone end caps. Other enclosure materials are not named and are not guessed from appearance.

Certifications

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FCC IDs

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Other certifications

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EU Declaration of Conformity (2014/53/EU RED), RoHS II (2011/65/EU and 2015/863/EU)12Maker spec sheet (PDF)sonos.com/pdfs/conformity/roam2.pdfRead 8 October 2026Current maker S27 declaration explicitly covers Roam 2 under RED 2014/53/EU and RoHS 2011/65/EU with the 2015/863/EU amendment. Model-level EU declarations only, not an inferred FCC ID for the selected US sale SKU.

In the box

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In the box

Speaker, USB Type-C cable2Maker product pagebose.ca/en/p/bose-soundlink-flex-bluetooth-speaker/SLFLX-SPEAKERWIRELESS-WHTSM-WW.htmlRead 13 October 2026What's in the box: Bose SoundLink Flex Bluetooth speaker and USB Type-C cable. SoundGuys says the cable is USB-C to USB-A.

Sonos Roam 2, USB-C to USB-C charging cable (1.2 m), Quickstart Guide and legal/warranty information1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026Standalone US speaker package: Roam 2, 1.2 m USB-C-to-C cable, setup guide and legal/warranty documents. USB power adapter and wireless charger are not included.

Links

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Product page

www.bose.ca/en/p/bose-soundlink-flex-bluetooth-speaker/SLFLX-SPEAKERWIRELESS-WHTSM-WW.html2Maker product pagebose.ca/en/p/bose-soundlink-flex-bluetooth-speaker/SLFLX-SPEAKERWIRELESS-WHTSM-WW.htmlRead 13 October 2026Maker's Canadian product page. The page shows the speaker as sold out and the US page has been removed.

www.sonos.com/en-us/shop/roam-2-black1Maker product pagesonos.com/en-us/shop/roam-2-blackRead 8 October 2026

Spec sheet

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assets.sonos.com/media-kits/hardware/roam2/roam2factsheet.pdf3Maker spec sheet (PDF)assets.sonos.com/media-kits/hardware/roam2/roam2factsheet.pdfRead 8 October 2026Original Sonos Roam 2 single-page maker fact sheet. Its historical Bluetooth 5.0 and abbreviated Wi-Fi list are not copied into current connectivity fields.

Manual

assets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdf1Owner's manualassets.bosecreative.com/m/43ab91c25d0ac95a/original/866666_OG_SLFLX-SPEAKERWIRELESS_enUS.pdfRead 13 October 2026

www.sonos.com/en-us/guides/roam22Owner's manualsonos.com/en-us/guides/roam2Read 8 October 2026Current exact Sonos Roam 2 product guide and its Roam 2 Specifications block were read. Shared navigation links to other products are not evidence for their specifications.

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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1year11Maker product pagesonos.com/en-us/legal/terms-of-useRead 8 October 2026US terms Section 10(a) manufacturer warranty lasts one year after original purchase. US reference-market warranty only, excluding statutory consumer rights and different regional warranty terms.

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