1.Valid the operation be apart from 1-1.5 meters;

2. Super and small frivolous receive a machine, the USB connect;

3.Auto power-saving sleeping funtions, prolong battery life

4.The wireless radio frequency of the 27 MHZ high speed RF technique, 360 degrees be all-directions operation, 800 DPI resolution(2500/ per second);

5.At all non- reflection superficial work;

6.Key number three key optical mouse;