Marshall Emberton III (Black/Silver) vs Bose SoundLink Flex Portable Speaker (2nd Gen, Black)
Should carry and orientation features or the manufacturers’ published runtime and quick-charge figures matter more for this purchase?
Products compared

ASIN B0GXH3N61Z
Marshall Emberton III (Black/Silver)
The Emberton III’s published 32+ hour and quick-charge figures are your preferred spec-based tie-breakers, and the lack of an included fastening strap on Black/Silver is acceptable.
Last observed offer
$179.99
- Confirm offer eligibility on Amazon
Size: One Size
Price checked
Observed condition: new. Coupon and subscription requirements unverified.

ASIN B0D6WD2QSQ
Bose SoundLink Flex Portable Speaker (2nd Gen, Black)
You want the documented nylon utility loop to clip the speaker to a bag or want PositionIQ to adjust audio when the speaker is stood, laid or hung.
Last observed offer
$159.00
- Confirm offer eligibility on Amazon
Size: Regular
Price checked
Observed condition: new. Coupon and subscription requirements unverified.
Prices are per listed package. Pickoryx may earn a commission from qualifying purchases through the paid Amazon links on this page, at no added cost to you.
Published by Pickoryx · Published 2026-10-07 · Source checked 2026-10-07 15:29 UTC
The main trade-off
The Bose page documents a clip-on utility loop and orientation sensing; the Marshall Black/Silver page publishes longer playtime and a short quick-charge figure but no included fastening strap for this colorway.
Quick verdict
Pick based on the documented feature you will use: Marshall publishes 32+ hours of playtime and a 20-minute charge for six hours, while Bose documents a nylon utility loop and PositionIQ orientation sensing. Those are manufacturer specifications and features, not a same-condition battery or sound test; both models list a built-in microphone, so these sources do not establish a call-quality winner.
Choose Marshall Emberton III (Black/Silver) if
- The Emberton III’s published 32+ hour and quick-charge figures are your preferred spec-based tie-breakers, and the lack of an included fastening strap on Black/Silver is acceptable.
Choose Bose SoundLink Flex Portable Speaker (2nd Gen, Black) if
- You want the documented nylon utility loop to clip the speaker to a bag or want PositionIQ to adjust audio when the speaker is stood, laid or hung.
When the recommendation changes
- A comparable independent battery test changes the runtime comparison.
- You need a fastening strap included with the speaker rather than a separate carry solution.
- Your decision depends on measured sound or call quality rather than published design features.
The differences that matter
| Decision point | Marshall Emberton III (Black/Silver) | Bose SoundLink Flex Portable Speaker (2nd Gen, Black) |
|---|---|---|
| Carry Orientation And Listening Setup | Emberton III advertises True Stereophonic 360° sound. Marshall says the fastening strap is not included except with the Brown colorway, so the Black/Silver configuration does not include a manufacturer fastening strap.[1] | SoundLink Flex (2nd Gen) has a nylon utility loop for clipping to a backpack; PositionIQ senses orientation and adjusts audio when the speaker is stood, laid back or hung.[3] |
What this changes: The documented Bose loop and PositionIQ suit buyers who want a clip point or automatic orientation adjustment. Marshall documents 360° sound for the Emberton III, which is a different design description and does not establish that it lacks orientation sensing.[1, 3] The better fit depends on your priorities | ||
| Day Away Runtime And Call Use | Marshall lists 32+ hours of playtime, a 20-minute charge for six hours of playtime, and a built-in microphone; its support page also provides Emberton III speakerphone instructions.[1, 2] | Bose lists up to 12 hours of battery life and a built-in microphone. Its page states the battery figure uses Bluetooth A2DP at 50% volume and 68–77°F, with default EQ and no external-device charging; it lists a four-hour full charge while in standby with a 7.5W USB-C supply.[3] |
What this changes: The published runtime and charging figures can help set expectations for a day away, but they are not a direct endurance comparison and will vary with use. Both manufacturers document a microphone, while no comparable call-quality evidence was found.[1, 2, 3] The better fit depends on your priorities | ||
Value and trade-offs
One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.
If one current offer costs more, weigh whether the documented carry/orientation feature or the published runtime/quick-charge specifications matter enough to justify that difference.
The available price history is too short on at least one side for a longer-term timing call; check current offers and bundle details before buying.
Limitations
- The battery numbers are manufacturer-published specifications, not a controlled side-by-side test; Bose lists test conditions and says results vary by content, volume and temperature, while no matched Marshall conditions were found.
- No independent sound, battery, durability or call-quality comparison was used, so the article does not declare a measured performance winner.
- Marshall’s US page confirms the Black/Silver Emberton III colorway and states that a fastening strap is included only with Brown.
- Price history contains one observed period for Emberton III and a short history for Flex 2nd Gen, so it does not support a 30-day-or-longer baseline or Buy Now/Wait advice.
Questions shoppers ask
Does Marshall’s 32+ hour claim prove that Emberton III lasts longer than the Bose?
No. Marshall advertises 32+ hours and Bose advertises up to 12 hours, but the pages do not provide a matched side-by-side test. Bose states its figure uses Bluetooth A2DP at 50% volume in a stated temperature range and that battery performance varies with use.
Can you clip both speakers to a backpack?
Bose documents a nylon utility loop for clipping its Flex 2nd Gen to a backpack. Marshall says the fastening strap is included with Emberton III in Brown only, not Black/Silver; this does not rule out a separate third-party carry option.
Methodology and sources
Compared the manufacturers’ documented carry/orientation features, battery and charging specifications, and microphone support. The separate runtime claims are not treated as a matched test.
Automation assembled the structured comparison and source references from the listed records; no product testing was performed.
View 3 sources
- 1.Emberton III portable speaker in Black and SilverMarshall · Official specifications · Source checked 2026-10-07 15:29 UTC
Evidence used on this page
- US product page selects Black and Silver and model 1009773; product details and box contents; battery and quick-charge specifications; built-in microphone and True Stereophonic description.: Exact US Black and Silver product selection for model 1009773. Marshall lists True Stereophonic 360° sound, 32+ hours playtime, 20 minutes charge for six hours, two-hour charge time, built-in microphone and says the fastening strap is included with Brown only.
- 2.Support for Emberton IIIMarshall · Official support · Source checked 2026-10-07 15:29 UTC
Evidence used on this page
- Support for Emberton III; Guides includes a Speakerphone article; product details includes quick charge.: Official model-specific support page confirms Emberton III and its 32+ hour playtime and 20-minute quick-charge statement and links to speakerphone guidance.
- 3.Shop SoundLink Flex Bluetooth Speaker (2nd Gen)Bose · Official specifications · Source checked 2026-10-07 15:29 UTC
Evidence used on this page
- Selected Color Black and product title; Product details / Technical Specifications; Perfectly portable; Plays from any position; battery footnote and charging conditions.: Official US Black page identifies SoundLink Flex (2nd Gen), documents a nylon utility loop, PositionIQ orientation sensing, up to 12 hours of battery, built-in microphone and four-hour charge. Battery note gives a 50% volume A2DP test and says actual results vary.