* Bluetooth 4.1 chipset, strong bluetooth signal, operating distance up to 10 meters; superior bluetooth compatibility, compatible with all the bluetooth enabled Smartphones, Tablet PC, Smart TV etc * High Definition 40mm Speaker Drive Units, HiFi super bass and stereo sound effect. * Lower power consumption,built in 300mAh Polymer Lithium Battery, music playback time up to 8 hours * Perfect human ergonomic design, adjustable headbeam, soft breathable protein earmuffs, comfortable to use * Easy access,Volume/Phone Controller–  on/off, answer/hang up, pause/ play, FM Radio/control volume. A built-in remote Mic for your hands-free call * SD Card With Built in FM Radio