RII K25 2.4Ghz Wireless Keyboard & Infrared Remote Control for TV BOX PC Games Multifunction, with QWERTY Keyboard & Air Mouse & IR remote for Windows and Mac OS computers, home theater PC users, IPTV, Internet TV, Google TV, Android TV box, PS3 and Xbox 360. With USB interface receiver, and built-in advanced lithium-ion battery, energy-efficient. Build-in rechargeable polymer Lithium-ion battery, support USB charge. Signals can be transmitted with high precision with a wide learning range. Universal infrared remote controller with learning function.