Breakthrough technology lets you control your own level of noise cancellation throughout your day , Bluetooth and NFC pairing so you can connect to your devices wirelessly. Bluetooth range: 10 m, Noise-rejecting dual-microphone system helps reduce the noise around you to deliver clearer calls, Lightweight neckband design conforms to your body for all-day comfort and wear ability, Lithium-ion battery lets you enjoy up to 10 hours of wireless listening per charge.