Color：Silver + White Connectivity
Connectors：USB bluetooth Power & Batteries
Battery Chemistry：Li-Ion Software
Supported Operating Systems：windows 98/ME/2000/XP/Vista/7,Mac OS 10.2.8 Package
Package Type：Retail Dimensions us | metric
Depth：4 mm
Height：241 mm
Width：92 mm
Product Weight：208 g

Details:Bluetooth V3.0 specification
Working range: 3 meters
84-key QWERTY keyboard
Built-in 650mAh battery
Working time: 7 days
Standby time: 60 days
Comes with USB charging cable (73cm)
Chinese / English user manual was included