- Color: Black<br />- PU leather material<br />- Bluetooth V3.0<br />- Operation range: 10m<br />- Modulation system: FHSS 2.4G<br />- Transmitting power: Class 2<br />- Working voltage: 3~5V<br />- Working current: less than 4mA<br />- Standby current: 1mA max<br />- Sleeping current: less than 200UA<br />- Charging current: at least 100mA<br />- Working time: 30h<br />- Charging time: 4~4.5h<br />- Battery capacity: 330mAh<br />- Working temperature: -20 ~ +55'C<br />- 76-Key keyboard<br />- Comes with USB cable (69cm) & English manual<br /><br />                                                                                                                                Dimensions: 20.47 in x 9.76 in x 0.47 in (52.0 cm x 24.8 cm x 1.2 cm)<br />Weight: 22.15 oz (628 g)<br /><br />