nullFeatures 92 keys 2 4GHz wireless Keyboard with Touchpad Touchpad DPI adjustable functions Built in high sensitive smart touchpad with 360 degree flip design Auto sleep and auto wake mode Innovative shape portable elegant The Ergonomically handheld design is easy to carry and operate Build in removable rechargable Li ion battery that has longer standby time Perfect for PC for Pad Andriod TV Box Google TV Box for Xbox360 for PS3 for HTPC IPTV etc Specification Operating range 15m MAX without signal disturbance and no direction limitFrequency range 2 403GHZ 2 480GHZOperational voltage 3 3VCharge Voltage 4 4V 5 25VChannel 78 channelsBattery Type Built in lithium batteryItem size 147 x 97 x 18mm 5 79 x 3 82 x 0 71inches Package Included 1 x H9 Colorful Backlit Wireless Keyboard1 x Charging Cable1 x User Manual1 x Lithium Battery in wireless keyboard 1 x Wireless Receiver in wireless keyboard