1.Multifunction: Mini keyboard + Touchpad + 6-axis air mouse + Audio chat smart and portable size. 2.2.4G wireless connection enjoy long-range wireless control. Innovation design of mouse function you can use Touchpad or air mouse to realize traditional mouse features. 3.Built-in Mic and headphone port for online voice communication. Qwerty keyboard with backlight it is convenient to operate in the dark 4.Ergonomic design compact and light weight. Can be used for PC Notebook Smart TV HTPC Android TV BOX etc. Specifications: RF mode: 2.4Ghz GFSK Operating distance: Up to 10 meters Transmission power: Less than +4db Built-in battery capacity: 450mAh Charging voltage: 4.4V ~ 5.25V Charging current: 300mA Sleeping Current class1: 86uA Operation Voltage: 3.7V Operating Current: Operating Current: 60 mA ; When backlit LED is on: 100mA