... Max Distance:15m CE, FCC &RoHS OEM/ODM 2.4G USB Receiver and Wireless Keyboard for Smart TV, Tablet PC, HTPC ... , it is easy to operate.* Capacitive touchpad, excellent sensitivity.* With USB receiver, plug and play.* Built-in rechargeable lithium-ion battery ... for your For Windows & Mac OS PC, HTPC, IPTV, PS3 & Xbox 360 etc.* suitable for multimedia teaching, meeting, lecture and other activities ...