QuietComfort 35 wireless headphones connect easily to your devices with Bluetooth and NFC pairing. Enjoy silence with noise cancellation that makes your music sound more epic. Pop on and fade out annoying aeroplane noise, so you can listen in peace. 20 hours of incredible wireless listening and 40 hours when wired. Durable, lightweight and comfortable so you can keep listening all day. Easy to control with Bluetooth and Bose Connect app. Move instantly from your iPad to iPhone when a call comes in. The app manages all devices youve connected to and will automatically switch between them whenever you want. Adjustable headband. Carry case. Batteries required 1 x Li-Ion battery (included) . Manufacturers 2 year guarantee.