1. 2.4GHZ,1000 DPI 2.1 year warranty 3.RoHS ABS material 4.Certification: CE,RoHS,FCC 5.High quality and reasonable price Description: 1. Six key multi-function design: Left, Right, DPI, Wheel, Forward, Backward 6 key design 2. Auto sleep function, intelligent province electricity, independent battery switch, extend battery life; 3. DPI switch: 800/1000 DPI high-resolution switch by a key, all- ...