1. Number of buttons: 3 buttons + a 3D scroll wheel + a side button + a DPI button
2. Compatible system: Win 2000/NT4.0/XP/NET/7/8/10, Mac OS X10.8
3. Return rate: 250Hz
4. Working frequency: 2.4G
5. Switch: FD300 million times white point switch
6. Resolution: 1000DPI/1600DPI/2400DPI
7. Working current: 10+/-1mA