For Smart TV or Smart Projector users, before purchasing, please make sure that your TV or Projector can be connected to a mouse and use normally (can test using a mouse) With 3-+ 3- Gsensor, its more convenient to easy operate in horizontal and vertical mode Only the Power button can be programmed for IR learning NOTE: This air mouse may be not compatible with some Smart TV, because the third-party USB dongle is blocked.You need to confirm your smart TV can recognize third-party USB dongle and support other remote control except its original remote Product Press Volume down+ Volume up together to turn off backlit, once again to turn on backlit. NOTE 1: Only power key can be programmed for IR learning. NOTE 2: This air mouse may be not compatible with some Smart TV, because the third- party USB dongle is blocked. You need to confirm your smart TV can recognize third- party USB dongle and support other remote control except its original remote. If you use it on android tv box. Please install google assitant 1. This is a wireless air mouse with built- in axis gyroscope and gravity acceleration sensor and fidelity voice input; it can perform the functions of a traditional remote control, computer mouse, and gaming motion controller on android platform. Plug and play micro receiver is compatible with personal computer, projector, TV box, Home Theater Personal Computer etc. 2. Holding air mouse and rotating your wrist is converted into a movement of a cursor across the screen and it allows you to control your computer, projector and other entertainment equipment from a distance. 3. Ergonomics of air mouse will replace stationary computer mouse and infrared button remote control giving you convenience to manage your computer and television set from a position which is most comfortable for you. Specification: 1. 2. 4GHz RF air mouse with voice control 2. 16KHz microphone and voice input 3. 6- Axis ( 3-+ 3- Gsensor ) 4. IR learning (only power button can be programmed) Product Press Volume down+ Volume up together to turn off backlit, once again to turn on backlit. NOTE 1: Only power key can be programmed for IR learning. NOTE 2: This air mouse may be not compatible with some Smart TV, because the third- party USB dongle is blocked. You need to confirm your smart TV can recognize third- party USB dongle and support other remote control except its original remote. If you use it on android tv box. Please install google assitant 1. This is a wireless air mouse with built- in axis gyroscope and gravity acceleration sensor and fidelity voice input; it can perform the functions of a traditional remote control, computer mouse, and gaming motion controller on android platform. Plug and play micro receiver is compatible with personal computer, projector, TV box, Home Theater Personal Computer etc. 2. Holding air mouse and rotating your wrist is converted into a movement of a cursor across the screen and it allows you to control your computer, projector and other entertainment equipment from a distance. 3. Ergonomics of air mouse will replace stationary computer mouse and infrared button remote control giving you convenience to manage your computer and television set from a position which is most comfortable for you. Specification: 1. 2. 4GHz RF air mouse with voice control 2. 16KHz microphone and voice input 3. 6- Axis ( 3-+ 3- Gsensor ) 4. IR learning (only power button can be programmed)