Short answer: the KEF Muo gen2 if sound quality matters most, the Walla Sound if price matters most. The KEF Muo gen2 ranks #96 of 177 medium speakers, rated 3.1/5, at $249.99. The Walla Sound ranks #163, rated 2.2/5, at $49.99, $200 cheaper.
The Walla Sound is the lighter choice. A small shockproof speaker with an aux input, microSD playback and a built in microphone. At 0.7 lbs (300 g) it weighs much less than the KEF Muo gen2 at 1.6 lbs (740 g). It keeps a wired aux input, which the KEF Muo gen2 lacks. The catch: No bass, gets distorted when turned up.
The KEF Muo gen2 is the better-sounding, longer-running pick. 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 8 for the Walla Sound. It is rated IP67 against IPX5 for the Walla Sound. It has an adjustable EQ, which the Walla Sound lacks. The tradeoff: Lacking deeper bass.
Buy the Walla Sound when the price outweighs sound quality for you, and the KEF Muo gen2 when sound quality outweighs the price instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A small shockproof speaker with an aux input, microSD playback and a built in microphone.
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
| Walla Sound | KEF Muo gen2 | |
|---|---|---|
| Price | $49.99 | $249.99 |
| Ranked | #163 of 177 in Medium Size Portable Bluetooth Speakers | #96 of 177 in Medium Size Portable Bluetooth Speakers |
| Amplifier Power | 10W (2 x 5W) | 40W |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | ~90Hz | - |
| Battery Life | 8 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IPX5 | IP67 |
| MicroSD Playback | Yes | - |
| Power Input | Micro USB | USB-C |
| Weight | 0.7 lbs (300 g) | 1.6 lbs (740 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.4 |
| Dimensions | 2.7” x 2.7” x 6.3” (68 x 68 x 160 mm) | 8.5” x 3.2” x 2.3” (216 x 82 x 59 mm) |
| Drivers | 30mm metal diaphragm driver | 1x 58x117mm racetrack woofer, 1x 20mm tweeter |
| TWS | Yes | Yes |
| Built-in Microphone | Yes | - |
| Digital Aux Input | No | Yes (USB-C) |
| Omnidirectional | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC, aptX Adaptive up to 48 kHz 24 bit |
| App | No | Yes |
| EQ | No | Yes |
| Stereo | No | Yes |
| Party Mode | - | Yes (Auracast) |
| Frequency Response | - | 43Hz - 20kHz (Manufacturer specified) |
| Maximum SPL | - | 90dB (Manufacturer specified) |
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