1:High capacity Li-poly battery.extra longet talk time than normal Bluetooth headsets Feature:Bluetooth Version:3.0+DAPSupports AVRCP, HSP and HFPExtremely good quality,superior clear voiceMultimedia, foldable Headphone,NechphoneHandsfree,compatible with all Bluetooth Devices Such As PS3&IPHONEHigh Capacity&Rechargeable Lion BatteryEnergy saving function,200% longer talk timeHandsfree,answer/ ...