Model KP-810-16V Quantity 1 Color Black + silver Material ABS + silicone Key Numbers 81 Connection Method 2.4G Wireless Power Supply Built-in rechargeable battery Battery Capacity 800mAh Supports System Windows 2000 / XP / Vista / Win 7 / Win CE Linux Android Mac Other Features 3-axis air mouse; R.F 2.4GHz wireless operation: Max. 10 meters radius; Three-axis gyroscope accurate operation; Built-in microphone and speaker 3.5mm jack supports 3.5mm plug earphones (not included); QWERTY keyboard USB receiver plug and play; Working voltage: 3.7V Charging: DC 5V / 300mA Packing List 1 x Remote keyboard air mouse 1 x USB receiver 1 x Lithium battery (800mAh) 1 x USB 2.0 female to USB 2.0 / Mini USB male cable (100cm) 1 x Chinese / English user manual