Short answer: the EarFun Uboom L. It ranks #2 of 177 medium speakers by sound quality, rated 4.6/5, at $49.79; the Marshall Emberton III ranks #125, rated 2.7/5, and costs $179.99, so there is not much of a tradeoff to weigh.
The Marshall Emberton III is the longer-running option. A tough waterproof speaker with Marshall styling and a very long battery, plus quick charging. It is rated for 32 hours of battery against 16 for the EarFun Uboom L. It links with other speakers (Marshall Stack), which the EarFun Uboom L cannot. The catch: Strange unnatural echo-like sound coloration, bass not as deep as competitors.
The EarFun Uboom L is the better-sounding option. A great value medium speaker with clear, natural sound, waterproofing, and a Video Mode that keeps audio in sync with video. It supports AAC Bluetooth, which the Marshall Emberton III lacks. It keeps a wired aux input, which the Marshall Emberton III lacks. Watch for: It cannot produce real low-bass rumble or fill a large, noisy space, and the top end loses some detail.
Buy the EarFun Uboom L. 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.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A tough waterproof speaker with Marshall styling and a very long battery, plus quick charging.
A great value medium speaker with clear, natural sound, waterproofing, and a Video Mode that keeps audio in sync with video.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Marshall Emberton III | EarFun Uboom L | |
|---|---|---|
| Price | $179.99 | $49.79 after coupon UBOOMLWC |
| Ranked | #125 of 177 in Medium Size Portable Bluetooth Speakers | #2 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (firmware >= 1.2.6) |
| Bass Extension (-10dB) | 62Hz | 56Hz |
| Battery Life | 32 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Party Mode | Yes (Marshall Stack) | No |
| Weight | 1.5 lbs (673 g) | 1.4 lbs (650 g) |
| IP Rating | IP67 | IP67 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.0 |
| Dimensions | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) | 3.1” x 8.3” x 2.8” (78 x 210 x 72 mm) |
| Drivers | 2x 2” full-range cone drivers + 2x 2” passive radiators | 2x 55mm drivers + 2x passive radiators |
| TWS | No | Yes |
| EQ | Yes (3 presets via app) | Yes (10 band, firmware >= 1.2.6) |
| Built-in Microphone | Yes | Yes |
| Stereo | Yes | Yes |
| Omnidirectional | Yes | No |
| Power Input | USB-C | USB-C |
| Power Bank | No | No |
| Aux Input | No | Yes |
| Amplifier Power | 20W | 28W |
| Bluetooth Codecs | SBC | AAC, SBC |
| Digital Aux Input | No | No |
| Strap | No | - |
| Aux Latency | - | 216ms |
| Bluetooth Latency | - | 400ms normal / 66ms low latency mode |
| Maximum SPL | - | 103dB (measured by Alan Ross Reviews) |
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