Description
KEF Mu3 are noise-cancelling true wireless earphones engineered for clean, accurate sound in a compact, ergonomic form. Designed in collaboration with Ross Lovegrove, Mu3 pairs KEF tuning with everyday practicalitystable Bluetooth connectivity, splash-proof protection, and controls that stay simple when youre on the move.
Key features
- Active Noise Cancellation (ANC): tuned to reduce external noise while keeping musical detail intact.
- Ambient Mode: bring outside sound back in when you need awareness around you.
- Bluetooth 5.0: stable wireless performance with iOS and Android devices.
- IPX5 splash-proof: built for everyday use across changing weather.
- Up to 24 hours total listening: up to 9 hours from the earphones + up to 15 hours from the charging case.
- Fast charging: 5 minutes of charging provides up to 1 hour of playback.
- Full-range driver design: 8.2mm driver tuned by KEF engineers.
- Easy control: multi-function button on each earbud for playback, volume, and calls.
Whats in the box
- Mu3 noise cancelling true wireless earphones
- Charging case (with built-in wireless charging)
- USB-C charging cable
- 4 sets of silicone ear tips (large, medium, small, short)
- Quick start guide + warranty information
Technical specifications
| Model | Mu3 |
| Driver | 8.2mm |
| Frequency range | 20Hz 20,000Hz |
| Sensitivity | 104dB/1mW at 1kHz |
| Impedance | 16 |
| Bluetooth version | 5.0 |
| Codec support | SBC, AAC |
| Bluetooth range | Up to 10m |
| Bluetooth frequency | 2.402GHz 2.48GHz |
| Bluetooth power | 13dBm |
| Max power output | 5mW |
| Battery (earbud) | 55mAh (Li-ion rechargeable) |
| Battery (charging case) | 500mAh (Li-ion rechargeable) |
| Playback time (earbuds) | Up to 9 hours (Bluetooth + ANC on) |
| Playback time (case) | Up to 15 hours |
| Fast charging | 5 mins charge = up to 1 hour playback |
| Dimensions (earbud) | 24.5 17.5 26.3 mm (H W D) |
| Dimensions (charging case) | 33.5 62 52 mm (H W D) |
| Power input | DC 5V 600mA |
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