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 Headphones dimension :6 H x 6.5 W x 0.75 L inches; Case dimension :6.5 H x 6.75 W x 1.4 L inches