Touch panel coordination index can auto-rotate an adjust according to the handling position. Practical and convenient operation touch panel and keyboard designed. Whether the touch panel works or the keyboard works depends on which side is upward. Build-in colorful backlight on the keyboard, more easy to use in dark situation. Wireless air mouse for remote control, practical and portable. Type: Wireless Air Mouse Material: ABS Connection Port: USB2.0 or above Transmission Mode: 2.4 GHz Wireless Transmission Distance: up to 10 meters Frequency Transmission: 2400-2483 MHZ (16 Channels) Transmission Power: 4bd Power Supply: Built-in Lithium-ion Polymer Battery (Included) Charging Voltage: 5.25V-4.4V Charging Current: 300mA Operating Current: