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.