Short answer: the Xiaomi Sound Outdoor. It ranks #46 of 177 medium speakers by sound quality, rated 3.7/5, at $49.99; the KEF Muo gen2 ranks #96, rated 3.1/5, and costs $249.99, so there is not much of a tradeoff to weigh.
The Xiaomi Sound Outdoor is the better-sounding pick. An affordable waterproof outdoor speaker with a separate tweeter, decent battery life and linking to many more speakers. Watch for: Bass reach is limited for the cabinet size, with a rated lower limit of 60Hz, and the boosted bass gets somewhat uncontrolled at high levels.
The KEF Muo gen2 is the longer-running option. A stylish waterproof stereo speaker with aptX Adaptive, USB-C audio input, Auracast and long battery life. It is rated for 24 hours of battery against 12 for the Xiaomi Sound Outdoor. It has an adjustable EQ, which the Xiaomi Sound Outdoor lacks. It plays in stereo from a single unit, unlike the Xiaomi Sound Outdoor. Watch for: Lacking deeper bass.
Buy the Xiaomi Sound Outdoor. It is rated higher for sound quality than the KEF Muo gen2 and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
An affordable waterproof outdoor speaker with a separate tweeter, decent battery life and linking to many more speakers.
A stylish waterproof stereo speaker with aptX Adaptive, USB-C audio input, Auracast and long battery life.
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
| Xiaomi Sound Outdoor | KEF Muo gen2 | |
|---|---|---|
| Price | $49.99 | $249.99 |
| Ranked | #46 of 177 in Medium Size Portable Bluetooth Speakers | #96 of 177 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | Yes | - |
| EQ | No | Yes |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Speakersync, up to 100 speakers) | Yes (Auracast) |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (597 g) | 1.6 lbs (740 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.4 | 5.4 |
| Dimensions | 7.7” x 2.7” x 2.6” (196.6 x 68 x 66 mm) | 8.5” x 3.2” x 2.3” (216 x 82 x 59 mm) |
| Drivers | 20W woofer, 10W tweeter + 2x passive radiators | 1x 58x117mm racetrack woofer, 1x 20mm tweeter |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 43Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 30W | 40W |
| Digital Aux Input | No | Yes (USB-C) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC, aptX Adaptive up to 48 kHz 24 bit |
| Aux Input | No | No |
| Maximum SPL | - | 90dB (Manufacturer specified) |
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