The KEF Mu3 sits at the heart of KEF's personal audio range, bringing the same acoustic philosophy that defines the brand's celebrated loudspeakers into a compact true wireless format. Designed in collaboration with legendary industrial designer Ross Lovegrove, the Mu3 combines sculptural aesthetics with the acoustic heritage of a company that has spent over six decades perfecting sound reproduction. In Charcoal Grey, the Mu3 presents a refined, understated look that works equally well during a commute, a workout, or a quiet evening at home.
KEF Sound, Wherever You Are
Each earbud houses an 8.2mm full-range driver, tuned by the same engineering team behind KEF's reference loudspeakers. The result is a rich, accurate sound with detailed midrange, controlled bass and crisp high frequencies — a level of sonic performance that distinguishes the Mu3 from typical consumer wireless earphones. With a sensitivity of 104dB/1mW and a frequency range spanning 20Hz to 20,000Hz, the Mu3 resolves musical detail that many earphones at this price simply cannot match.
Active Noise Cancellation
The Mu3 features integrated Active Noise Cancellation (ANC), enabling up to 9 hours of listening time with both Bluetooth and ANC active. When you need a break from the outside world, the ANC system works quietly in the background, leaving the music to speak for itself. The IPX5 splash-proof rating means the Mu3 can handle the unexpected - rain, sweat, and everyday wear included.
Bluetooth 5.0 and Codec Support
Bluetooth 5.0 delivers a stable, reliable connection to both iOS and Android devices within a 10-metre range. Codec support covers SBC and AAC, ensuring high-quality audio transmission from your music library or streaming service. The Mu3 connects quickly and maintains its pairing reliably throughout the day.
Battery Life and Fast Charging
With 9 hours of on-board battery life and an additional 15 hours from the charging case, the Mu3 offers a combined total of up to 24 hours of listening. Fast charging is also on hand when you are short on time: just 5 minutes of charging delivers a full hour of use, so you are never caught out without music.
Intuitive Controls
Each earbud features a multi-function button for full control of music playback, volume adjustment and calls, keeping everything you need at your fingertip. The Mu3 is designed to be used intuitively, without the need to reach for your phone every time you want to make a change.
