High-Fidelity Sound in Motion
Combining cutting-edge acoustic design with refined aesthetics, the MUO delivers KEF’s renowned clarity and depth in a portable form. Its sculpted aluminium enclosure houses advanced drivers and amplifiers that produce a full, natural sound across a wide frequency range — from deep bass to crystal-clear highs.
Designed for Real Life
With its durable, IP67-rated construction, the MUO resists dust and water, making it the ideal companion at home or on the move. The intuitive layout and sleek, minimalist form make it as practical as it is beautiful. Sustainability is also at the heart of the design, with plastic components made from post-consumer recycled materials.
Seamless Connectivity
Enjoy effortless pairing via Bluetooth 5.4 with support for aptX Adaptive, AAC, and SBC codecs, or connect directly via USB-C for both playback and charging. With support for Auracast™, True Wireless Stereo (TWS), and fast pairing through Google and Microsoft, MUO ensures high-resolution streaming with minimal setup.
Long Battery Life & Smart Charging
Offering up to 24 hours of playtime, the MUO keeps the music going all day. When it’s time to recharge, fast-charging capability provides up to three hours of playback in just 15 minutes, so your music is never far away.
Technical Specifications
| Specification |
Details |
| Model |
MUO |
| Dimensions (H × W × D) |
216 × 82 × 59 mm (8.5 × 3.2 × 2.3 in.) |
| Weight |
740 g (1.6 lbs) |
| Drive Units |
HF: 20 mm (0.75 in.) MF/LF: 58 × 117 mm (2.5 × 5 in.) supported by P-Flex |
| Amplifiers |
HF: 1 × 10 W Class D MF/LF: 1 × 30 W Class D |
| Max SPL (1m) |
90 ±3 dB |
| Frequency Response (±3 dB) |
43 Hz – 20 kHz (measured at 85 dB/1m) |
| Dust & Waterproof Rating |
IP67 |
| Operating Temperature |
−20°C to 45°C |
| Sustainability |
Plastic components comprise post-consumer recycled materials |
| Bluetooth Version |
Bluetooth 5.4 |
| App Support |
KEF Connect |
| Bluetooth Codecs |
aptX Adaptive, SBC, AAC |
| Wired Connectivity |
USB-C (charging and playback) |
| Speakerphone |
Supports noise and echo cancellation |
| Fast Pairing |
Google Fast Pair, Microsoft Swift Pair |
| Supported Resolution |
aptX Adaptive up to 48 kHz / 24 bit USB-C up to 48 kHz / 16 bit (Depends on source device support)
|
| Stereo Pairing |
True Wireless Stereo (TWS) |
| Multi-Speaker Pairing |
Supported via Auracast™ (Compatibility depends on source device)
|
| Battery Playtime |
Up to 24 hours (moderate volume) |
| Charging Time |
Fully charged in 2 hours (20V / 1.5A charger) |