Model LS-BK989 Quantity 1 Piece Color Black Material ABS plastic Compatible Models Iphone 5 Supported Systems Windows 98 / ME / 2000 / XP / 2003 / Vista Windows Mobile 6.0 or Symbian S60 Symbian Iphone OS android smartphone etc. Keys 49 Connection Bluetooth V3.0 Operating Range 10 Battery 300mAh Charging Time 3 hours Working Time 10 hours or above Other Features Built-in power management software; Frequency range: 2.4~2.4835GHz; Receiving sensitivity: -75dbm (standard) up to 4dBm (Max.) low radiation; Working voltage: 3V; Working current: Packing List 1 x Keyboard 1 x Charging cable (70cm) 1 x English manual