Experience high-resolution sound on the move with KEF Mu7 Noise Cancelling Wireless Headphones. Engineered for pure, accurate audio, the Mu7 is custom tuned to reveal every note and detail. Qualcomm aptX HD delivers up to 24bit/48kHz playback, and a 3.5mm wired input provides uncompressed high-resolution playback from compatible phones and dedicated DAC/headphone amplifiers. Active Noise Cancellation reduces ambient noise, while Bluetooth support (compatible with Bluetooth 4.0/5.0/5.2) offers flexible wireless connectivity. Memory-foam ear cushions and an ergonomic headband create a comfortable, secure acoustic seal for long listening sessions. The Mu7 comes with a 24-month manufacturer warranty.