1.wireless bluetooth keyboard for Iphone 4 2.ABS case ... ,li-ion battery,portable Features: 1.Appearance: smart and cute,mini bluetooth keyborad for Iphone 4,2.special design, quite ... make the keyboard looks top-grade.4.broadcom bluetooth chip,v2.0 bluetooth. 5. PC system: windows/XP/vista/MAC6 ... *operating voltage: 3.7V*charge duration: 15 days*bluetooth 2.0 interface*work voltage:3.7v Our company ...