Note: There are two versions of this remote control with Gyro Sensing and no Gyro Sensing. Please pay attention when purchasing. Type A: 2.4G+Voice Type B : 2.4G + Voice + Gyro NOTE 2: Only power key can be programmed for IR learning. NOTE 3: 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. How to use? For initial use,plug a USB receiver into the USB port of device and wait for 20-60 seconds to install driver of USB receiver.Move the air mouse, the air mouse cursor can move on the screen means that pairing is successful. If it is unsuccessful,press and hold''OK'' and ''Return'' buttons, LED light begin to flash,Pairing is successful when LED light stop flashing Instructions: The usb receiver into the computer usb interface. Wait for the computer to automatically download and install a good driver to use. Air Mouse has 3 levels of cursor speed From Slow to Fast: Press and hold"OK" and "Volume+" buttons the speed adjust one level when LED lights on. From fast to Slow: Press and hold"OK" and "Volume-" buttons the speed adjust one level when LED lights on. How to Use IR Learning? for example of learning"power" button 1.Keep pressing"Power"button. the air mouse enters IR learning mode when the LED flashes slowly 2. Press the "power" button when you aim the IR transmitter with air mouse,Air Mouse receivers the code successfully if LED light 3. LED flashes slowly means that Air mouse has finished Learning 4. Data will be saved automatically and the product will exit learning mode 5. Press and Hold"OK"+"DEL" to Clean the code up. Specifications: Color: Blac Material: Plastic Size :Length :160mm Width :45mm Quantity: 1PC Note: Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Remote Control Fly Air Mouse (Without battery)