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The air wireless mouse system adopted much longer communication distance 2.4 GHz wireless transmission module and a rechargeable lithium battery is improved, in order to solve the existing problem of wireless air mouse, such as the shorter communication distance, the limitations of battery-powered and so on. It is well-adapted to the practical application environments that the receiver through the USB protocol can be reused as the massive storage device.The air wireless mouse system is adopted multi-sensor data fusion technology. Firstly, the real-time collected data through the three axis gyro and three axis accelerometer is transmitted to the STM32 microcontroller, used to calculate the mouse displacement, angle, angular velocity and other parameters. These datas will be sent to the receiver by wireless transmission module to achieve communication with the computer, which is controlled to perform the function of the mouse, the receiver of the USB device can be switched to plug-free U disk mode. The multimedia wireless air mouse achieve an intelligent and multi-functional task based on MEMS technology.