Adapting high-tech methods,SD-048 can give out two kinds of peculiar ultrasonic waves which can irritate the nervous and audio system of the mouse, make them uncomfortable and unpleasant and drive them away. The frequency of the ultrasonic waves are always changing which can not make the mouse have any "adaptability" and "immunity".

Adapting a pucular automatic control circuit,this device will be working when the vehicles put out and will be stopped when the motor working in the vehicle.