Color White Brand N/A Model BK-991 Quantity 1 Piece Material ABS Compatible Models IPAD IPHONE Samsung Galaxy Tab Supported OS Android Windows XP / VISTA / 8 Connection Bluetooth V3.0 + HS Keys 78 Operating Range 10 m Built-in Battery Capacity 200 mAh Standby Time 400 Hour Charging Time 3~4 Hour Working Time 100 Hour Other Features Frequency band: 2.4~2.4835GHz unlicensed ISM band; Receiving sensitivity: -75dBm (standard); RF output power: 4dBm maximum; Standby time: 400 hours; Power: Charges by USB Packing List 1 x Ultra slim mini Bluetooth keyboard 1 x USB cable (62cm) 1 x English user manual