... High quality Products descriptionBluetooth wireless headsetSupport systems:audio equipments with bluetooth functions,such as PC,cellphone,MP3…Bluetooth ... 2480MHzUSB interference:High speed USB 2.0Battery:rechargeable lithium-ion polymer battery (3.7V/320MA/h)Successive working time ... 3.0v Wireless stereo bluetooth headphone foldable new style for computer, PC, Ipad, Ipod, Xbox etc with microphone