Massive Audio Inc. The Doctor Who TARDIS Bluetooth Headphones are built for comfort, function, style, and sound quality. Their leather ear pads and adjustable headband ensures a universal comfortable fit. The built-in noise canceling microphone captures your voice perfectly for gaming or talking on the phone. The rechargeable battery has a 30 hour, of constant music, capacity and is easily charged via USB. Designed with a glossy white piano finish, stylish TARDIS logos, and 'Police Public Call Box' on the top band let Whovians sport these headphones in style. NIB.