Short answer: the Bogasing G4. It ranks #27 of 172 medium speakers by sound quality, rated 4.0/5, at $38.29; the KEF Muo gen2 ranks #94, rated 3.1/5, and costs $249.99, which makes this an easy call rather than a real tradeoff.
The Bogasing G4 is the better-sounding choice. A 1.8 lbs (0.83 kg) travel-friendly speaker with 50W output, IPX7 protection, USB-C charging, aux and microSD playback, LC3 Bluetooth and TWS pairing. It keeps a wired aux input, which the KEF Muo gen2 lacks. The catch: The upper treble is boosted and uneven, while the mids sit slightly behind the bass and highs, so it is not a neutral choice for vocal-focused music.
What the KEF Muo gen2 does well: A 1.6 lbs (740 g) IP67 stereo portable with aptX Adaptive, USB-C audio input, Auracast and a rated 24-hour battery. It supports aptX Adaptive Bluetooth, which the Bogasing G4 lacks. It links with other speakers (Auracast), which the Bogasing G4 cannot. It has an adjustable EQ, which the Bogasing G4 lacks. Watch for: Lacking deeper bass.
Buy the Bogasing G4. It is rated higher for sound quality than the KEF Muo gen2 and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A 0.83kg travel-friendly speaker with 50W output, IPX7 protection, USB-C charging, aux and microSD playback, LC3 Bluetooth and TWS pairing.
Amazon $38.29 eBay
A 740 g IP67 stereo portable with aptX Adaptive, USB-C audio input, Auracast and a rated 24-hour battery.
Amazon $249.99 eBayPrices on this page were last checked October 17, 2026 at 6:04 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
| Bogasing G4 | KEF Muo gen2 | |
|---|---|---|
| Price | $38.29 | $249.99 |
| Ranked | #27 of 172 in Medium Size Portable Bluetooth Speakers | #94 of 172 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes |
| Aux Input | Yes | No |
| Aux Latency | 16ms | - |
| Bass Extension (-10dB) | 56Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| EQ | No | Yes |
| IP Rating | IPX7 | IP67 |
| Bluetooth Latency | 90ms | - |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) | 90dB (Manufacturer specified) |
| MicroSD Playback | Yes | - |
| Party Mode | No | Yes (Auracast) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.8 lbs (0.83 kg) | 1.6 lbs (740 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | LE Audio with LC3 | SBC, aptX Adaptive up to 48 kHz 24 bit |
| Amplifier Power | 50W | 40W |
| Drivers | Two drivers and passive radiators | 1x 58x117mm racetrack woofer, 1x 20mm tweeter |
| Bluetooth Version | 5.3 | 5.4 |
| Digital Aux Input | No | Yes (USB-C) |
| Dimensions | 8.9”H x 2.5”W x 3.4”D (225 x 64 x 86 mm) | 8.5” x 3.2” x 2.3” (216 x 82 x 59 mm) |
| Frequency Response | - | 43Hz - 20kHz (Manufacturer specified) |
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