Short answer: the Marshall Emberton II, though neither ranks well in its class. It ranks #116 of 157 medium speakers by sound quality (rated 2.7/5); the Boat Stone 350 ranks #135 (rated 2.3/5). Both are rated below 3.0/5 among the 157 medium speakers; for better sound, the Earfun Uboom L ranks #1 at $49.79.
The Marshall Emberton II is the better-sounding, deeper-bass choice. 30 hour battery life: among the best in its class; a 20 min quick-charge gives 4 hours. Its bass reaches about 62Hz before falling 10dB, against 87Hz for the Boat Stone 350. It is rated for 30 hours of battery against 6 for the Boat Stone 350. The catch: Strange unnatural echo-like sound coloration, bass not as deep as competitors.
The Boat Stone 350 is the lighter pick. 10W cylindrical stereo speaker with dual passive radiators, IPX7 water resistance, microSD card slot, and 3.5mm aux input. At 0.9 lbs (426 g) it weighs much less than the Marshall Emberton II at 1.5 lbs (700 g). It keeps a wired aux input, which the Marshall Emberton II lacks. The catch: Midrange peaks with rolled-off treble.
Buy the Marshall Emberton II. It is rated higher for sound quality than the Boat Stone 350.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Marshall Emberton II | Boat Stone 350 | |
|---|---|---|
| Price | $144.99 | - |
| Ranked | #116 of 157 in Medium Size Portable Bluetooth Speakers | #135 of 157 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Bass Extension (-10dB) | 62Hz | 87Hz |
| Battery Life | 30 hours (Manufacturer specified) | 6 hours (Manufacturer specified) |
| Bluetooth Latency | 80ms | - |
| Maximum SPL | 88dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Marshall Stack) | - |
| Weight | 1.5 lbs (700 g) | 0.9 lbs (426 g) |
| IP Rating | IP67 | IPX7 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.1 | 5.0 |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Dimensions | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) | 3.5” x 7.1” (90 x 180 mm) |
| Drivers | 2x 2” full-range drivers + 2x passive radiators | 2x 20mm tweeters + 2x 45mm drivers |
| TWS | No | Yes |
| EQ | Yes (3 presets via app) | Yes (multiple modes) |
| Built-in Microphone | No | Yes |
| Stereo | Yes | Yes |
| Omnidirectional | Yes | No |
| Power Input | USB-C | USB-C |
| Power Bank | No | - |
| Aux Input | No | Yes |
| Amplifier Power | 20W | 10W |
| Digital Aux Input | No | No |
| Strap | No | No |
| MicroSD Playback | - | Yes |
Related Speaker Comparisons
How Marshall Emberton II compares with other leading options:
- Marshall Emberton II vs Earfun Uboom L
- Soundcore Motion 300 vs Marshall Emberton II
- Soundcore Motion+ vs Marshall Emberton II
- Soundcore Boost “upgraded” 2021 vs Marshall Emberton II
- Marshall Emberton II vs Minirig 4
Prices on this page were last checked October 2, 2026 at 10:18 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Marshall Emberton II: $144.99 Amazon eBay
Newer model: the Marshall Emberton III, ranked higher, rated 2.7/5.
Pros: 30 hour battery life: among the best in its class; a 20 min quick-charge gives 4 hours. IP67 rated, durable rubbery build using 50% recycled plastic. Measured bass extension of 62Hz (-10dB).
Cons: Strange unnatural echo-like sound coloration, bass not as deep as competitors. Not technically a 360 speaker, only front and rear. Not very loud.
Full Marshall Emberton II review and specifications →
| Amplifier Power | 20W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 62Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 80ms |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) |
| Drivers | 2x 2” full-range drivers + 2x passive radiators |
| EQ | Yes (3 presets via app) |
| IP Rating | IP67 |
| Maximum SPL | 88dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | Yes (Marshall Stack) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| Weight | 1.5 lbs (700 g) |
- Links
- Reviews, Comparisons and Sound Samples
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- Passione Speaker: Bass Test Marshall Emberton 2 vs Emberton 3
- Head-to-Head Comparisons
- Marshall Emberton II vs Marshall Emberton III
- Marshall Emberton II vs Bose SoundLink Color II
- Marshall Emberton II vs Teufel Rockster Go
- Marshall Emberton II vs Sony SRS-XB30
- Marshall Emberton II vs Yamaha True X Speaker 1A
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Boat Stone 350 eBay
Pros: 10W cylindrical stereo speaker with dual passive radiators, IPX7 water resistance, microSD card slot, and 3.5mm aux input. Measured bass extension of 87Hz (-10dB).
Cons: Midrange peaks with rolled-off treble. Bass extension limited below 87Hz.
Full Boat Stone 350 review and specifications →
| Amplifier Power | 10W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 87Hz |
| Battery Life | 6 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3.5” x 7.1” (90 x 180 mm) |
| Drivers | 2x 20mm tweeters + 2x 45mm drivers |
| EQ | Yes (multiple modes) |
| IP Rating | IPX7 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 0.9 lbs (426 g) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
- Boat Stone 350 vs Boat Stone 352
- Boat Stone 350 vs Doss Soundbox Pro
- Boat Stone 350 vs Marshall Emberton III
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- Boat Stone 350 vs Soundcore 2
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- See all 29 comparisons