2.4GHz wireless keyboard with touchpad, 92 keys. Control keys for PC gaming and multimedia are included in this compact QWERTY keyboard. Ideal for Web TV, iPhone, Android TV box, Set Top Box, Google TV, and HD players. ≥3m is the maximum operating distance without direction limitation or signal disruption. Using a USB interface adapter Touchpad that can be adjusted TPU keys with scroll wheel functionality for a comfortable typing experience. Multimedia PCs and smart phones are controlled wirelessly. Black is the color. 3.7V is the operational voltage. Voltage of Charge: 4.4V to 5.25V Power usage: 1mA while sleeping, 55mA while operating Lithium-ion battery integrated