These are not really the same size class, and that is the honest framing here. The EarFun Uboom L ranks #2 of 179 medium speakers by sound quality at $49.79; the Tribit Stormbox Micro 2 ranks #1 of 62 small speakers by sound quality at $35.39.
The EarFun Uboom L is the louder, deeper-bass option. A great value medium speaker with clear, natural sound, waterproofing, and a Video Mode that keeps audio in sync with video. Its bass reaches about 56Hz before falling 10dB, against 65Hz for the Tribit Stormbox Micro 2. Alan Ross Reviews measured it at 103dB at full volume, against 94dB for the Tribit Stormbox Micro 2. It is rated for 16 hours of battery against 12 for the Tribit Stormbox Micro 2. The tradeoff: It cannot produce real low-bass rumble or fill a large, noisy space, and the top end loses some detail.
The Tribit Stormbox Micro 2 is the lighter choice. An excellent sounding small speaker, with surprisingly deep bass for its size and a strap that holds it on a bike or backpack. At 0.7 lbs (317 g) it weighs much less than the EarFun Uboom L at 1.4 lbs (650 g). Watch for: Finicky phone charging, which doesn’t usually work.
Buy the EarFun Uboom L ($49.79) for a medium speaker; the Tribit Stormbox Micro 2 ($35.39) suits a small speaker instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Prices on this page were last checked November 7, 2026 at 7:34 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
| EarFun Uboom L | Tribit Stormbox Micro 2 | |
|---|---|---|
| Price | $49.79 after coupon UBOOMLWC | $35.39 |
| Ranked | #2 of 179 in Medium Size Portable Bluetooth Speakers | #1 of 62 in Small Size Portable Bluetooth Speakers |
| App | Yes (firmware >= 1.2.6) | Yes |
| Aux Input | Yes | No |
| Aux Latency | 216ms | - |
| Bass Extension (-10dB) | 56Hz | 65Hz |
| Battery Life | 16 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (10 band, firmware >= 1.2.6) | Yes (9 Band) |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 400ms normal / 66ms low latency mode | 265ms |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) | 94dB (measured by Alan Ross Reviews) |
| Party Mode | No | No |
| Power Bank | No | Yes (but it doesn’t usually work; USB-C, 10W) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (650 g) | 0.7 lbs (317 g) |
| Bluetooth Version | 5.0 | 5.3 |
| Dimensions | 3.1” x 8.3” x 2.8” (78 x 210 x 72 mm) | 3.9” x 3.9” x 1.7” (99.1 x 99.1 x 42.7 mm) |
| Drivers | 2x 55mm drivers + 2x passive radiators | 48mm NdFeB driver |
| Amplifier Power | 28W | 10W |
| Digital Aux Input | No | No |
| Strap | - | Yes (built-in strap) |
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