Cambridge Melomania P100 Over-ear Headphones with Active Noise Cancelling  Experience superior sound anywhere. Our headphones bring the award-winning audio quality of our systems on-the-go for immersive music enjoyment in daily life. Crafted 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 Environmentally conscious – User-replaceable battery and earpads, premium reclaimed materials and plastic-free packaging