Model LS-BK989 Quantity 1 Piece Color Black Material ABS Compatible Models Iphone 5 Supported Systems Windows 98 / ME / 2000 / XP / 2003 / VISTA operation system; Windows Mobile6.0 / Symbian S60 SymbianIphone OSAndroid smart phone Keys 49 Connection Bluetooth V3.0 Operating Range More than 10m Battery Lithium battery Charging Time 3h Working Time More than 10h Battery Type 300mA Other Features Support low voltage alarm; Receiving sensitivity: -75bm up to 4bm; Ultra-low radiation; Smart class 3 energy-saving mode Packing List 1 x Mini keyboard 1 x Protective case 1 x Holder 1 x Charging cable (70cm) 1 x English user manual