Wireless Mouse IC V108 DIP8l 3-6 Buttons CPI 400/500/600/800 1000 (Default) /1200/1600 Signle power supply Power range 1.7V -3.2V Precision optical displacement prediction technology Very good 2-D motion sensor Support extremely fast moving speed Maximum speed of movement 28 Inch/sec CPI CPI: Maximum 1600 Once stop moving, immediately enter the energy saving model Data transmission is achieved through serial interfaces Built-in low power timer (LPT),sleep1/sleep2 models The mouse can be awakened by the pin, and the sensor is controlled to wake up from the sleep mode. Built-in oscillator LED current-limiting resistance 68-470 Ohm(Determine by the actual plane),recommend 100 Ohm. DIP8 package