KDLINKS AM02 Wireless Motion Controller with QWERTY Keyboard USB 2.4GHz Wireless Technology + 2 Years US Warranty Wireless 2.4Ghz RF Motion Controller with QWERTY keyboard, good for home entertainment and business presentation Good for almost all devices which can take USB mouse input Convenient and efficient for conference, presentation and lecturing Suitable for PC, Smart TV, Set-top-box, Android TV Box, Media Player 2 Year warranty on AM02 motion controller, best quality ensured