Features: 92 keys, 2. 4GHz wireless Keyboard with Touchpad.Touchpad DPI adjustable functions.Built-in high sensitive smart touchpad with 360-degree flip design.Mini QWERTY keyboard with multimedia control keys and PC gaming control keys.Auto sleep and auto wake mode.Innovative shape, protable, 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, Pad, Andriod TV Box, Google TV Box, for Xbox360, for PS3, HTPC/IPTV, etc.Specification:Operating range: 15 meters(MAX), without signal disturbance and no direction limit.Frequency range: 2. 403GHZ ~ 2. 480GHZOperational voltage: 3. 3VCharge Voltage: 4. 4V ~ 5. 25VModulation: GFSKChannel: 78channels TXPower: less than +5dBm Transmission rate: 1M bit/secFrequency tolerance: +/-30ppmPower consumption: 55mA(on), 1mA(sleep)Color:BlackBattery Type: Built-in lithium-ion batteryNotice: After 3 minutes without any operating will into sleep mode, press any key about 1s to wake up.Package including:1 * Wireless keyboard1 * Wireless receiver1 * Charging data cable1 * User manual