Short answer: the Ultimate Ears Wonderboom 2, though neither ranks well in its class. It ranks #108 of 164 medium speakers by sound quality, rated 2.9/5, at $80; the Marshall Emberton III ranks #122, rated 2.7/5, and costs $129.99, which makes this an easy call rather than a real tradeoff. Both are rated below 3.0/5 among the 164 medium speakers, and the Earfun Uboom L, ranked #2 at $49.79, is a better place to start if sound quality matters.
Buy the Ultimate Ears Wonderboom 2. It is rated higher for sound quality than the Marshall Emberton III and costs less, which makes it the one to get unless you need something the other one does better.
Battery life favors the Marshall Emberton III: rated for 32 hours against 12 hours for the Ultimate Ears Wonderboom 2.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Marshall Emberton III | Ultimate Ears Wonderboom 2 | |
|---|---|---|
| Price | $129.99 | $80 |
| Ranked | #122 of 164 in Medium Size Portable Bluetooth Speakers | #108 of 164 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Bass Extension (-10dB) | 62Hz | 82Hz |
| Battery Life | 32 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Party Mode | Yes (Marshall Stack) | No |
| Weight | 1.5 lbs (673 g) | 0.9 lbs (420 g) |
| IP Rating | IP67 | IP67 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.1 |
| Dimensions | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 2x 2” full-range cone drivers + 2x 2” passive radiators | 2x 40mm active drivers + 2x passive radiators |
| TWS | No | Yes |
| EQ | Yes (3 presets via app) | No |
| Built-in Microphone | Yes | No |
| Stereo | Yes | No |
| Omnidirectional | Yes | Yes |
| Power Input | USB-C | Micro USB |
| Power Bank | No | - |
| Aux Input | No | No |
| Amplifier Power | 20W | - |
| Bluetooth Codecs | SBC | SBC |
| Digital Aux Input | No | No |
| Strap | No | Yes (built-in loop) |
| Maximum SPL | - | 88dB (measured by Alan Ross Reviews) |
Related Speaker Comparisons
How Ultimate Ears Wonderboom 2 compares with other leading options:
- Earfun Uboom L vs Ultimate Ears Wonderboom 2
- Soundcore Motion 300 vs Ultimate Ears Wonderboom 2
- Soundcore Motion+ vs Ultimate Ears Wonderboom 2
- Soundcore Boost “upgraded” 2021 vs Ultimate Ears Wonderboom 2
- Minirig 4 vs Ultimate Ears Wonderboom 2
Prices on this page were last checked October 4, 2026 at 9:58 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 III: $129.99 Amazon eBay
Older model: the Marshall Emberton II (ranked lower, rated 2.7/5).
Smaller model: the Marshall Willen II (rated 4/5).
Larger model: the Marshall Middleton (rated 4/5).
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. Not really any different from the Emberton II except having the treble turned down a little bit.
Full Marshall Emberton III review and specifications →
| Amplifier Power | 20W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 62Hz |
| Battery Life | 32 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) |
| Drivers | 2x 2” full-range cone drivers + 2x 2” passive radiators |
| EQ | Yes (3 presets via app) |
| IP Rating | IP67 |
| Omnidirectional | Yes |
| Party Mode | Yes (Marshall Stack) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| Weight | 1.5 lbs (673 g) |
- Links
- Reviews, Comparisons and Sound Samples
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Ultimate Ears Wonderboom 2: $80 Amazon eBay
Newer model: the Ultimate Ears Wonderboom 4, ranked higher, rated 2.9/5.
Pros: IP67 rated and floats. Compact and light enough to toss in a bag. Measured bass extension of 82Hz (-10dB).
Cons: Not stereo, barely any bass, recessed treble. Slightly boosted 93Hz upper bass Dip at 9kHz. You can tell from the micro USB that they are just feeding you the same crap hardware over and over, this is inexcusable for a product released in 2019. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Wonderboom 2 review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 82Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 88dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Input | Micro USB |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
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- Head-to-Head Comparisons
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