Cambridge Audio Melomania P100Crafted for stunning sound Class A B amplification through custom 40mm diaphragm drivers 100 hour battery life five minutes of charge gives up to four hours' playback Designed for life with adaptive hybrid Active Noise Cancelling, seamless multi device pairing, wear detect and gaming mode. Engineered by experts aptX Adaptive Audio, aptX Lossless, Clear Voice Capture Echo Cancelling, Noise Suppression and Bluetooth 5. 3 Multipoint Connection