coordination can auto-rotate an adjust according to the handling position.Practical and convenient operation and keyboard designed.Whether the works or the keyboard works depends on which side is upward.-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 MouseConnection Port:USB2.0 or aboveTransmission Mode:2.4 GHz WirelessTransmission Distance:up to 10 metersFrequency Transmission:2400-2483 MHZ (16 Channels)Transmission Power: less than 4bdPower Supply:Built-in Lithium- Polymer Battery (Included)Charging Voltage:5.25V-4.4VCharging Current:300mAOperating Current:Less than 15mA (Backlight Off)Dormancy Current:Less than 100uAFeatures: Keyboard, Touchpad, Easy Operation, Universal, Backlight, WirelessColour:BlackMaterial:plasticSize:145mmx75mmx13.5mm/5.71inchx2.95inchx0.39inch(.)Package Contents:1 * Wireless Keyboard1 * ReceiverOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.