Atickbase 2.4G Wireless Keyboard Mouse Mini Fly Air Mouse Portable Remote Controller Game Keyboard for Android Tv Box X360 PS3 Smart TV PC Motion sensing Game The indicator light is always on the indicates that the receiver and the handle are connected and it can be used normally. When indicator light flash slowly (1HZ) , the receiver and the handle connection is not successful, please check the connection of the USB receiver. Indicator light flash quickly (5HZ) that indicate it is forced to code state. Warning: this operation may destroy the original pairing mode, use caution unless the mouse have some special circumstances. Pull off the receiver, while holding down the handle OK key and left key (return key) 3-5 seconds, meanwhile the indicator light flashes quickly. the handle will automatically to the code.when you inserted it into the receiver. Mouse re calibration instructions: Warning: the mouse has been calibrated before mint before sell, only when the cursor drift during this operation. 1 when the cursor is irregular fluttering, please also hold down the OK key and the mute button (the next key) 3-5 seconds, when the indicator light is flashing, put one the fly mouse on the desktop and plugged receiver,the handle will be automatically calibrate. Plug and play USB 2 receiver, compatible with any USB interface devices, including PC, TV, set-top boxes, game players, media players, etc.Intelligent anti shake design,make it equivalent to a desktop mouse. The receiver is placed in the back cover of the power supply, which is not easy to lose. Design in humanization will give you a better user experience.