Model Number: RD-GM501 Brand Name: Rider Key Specifications/Special Features: Four dpi adjustable: 400, 800, 1,600 and 2,200Mouse buttons: seven buttonsUser setting for one click, 2 or 3 or 4 shots for gamingadvantageGlaser engine mouse works on 99% surface, including transparentglassWorks even better than normal laser engine

Double lens, double performance

Encoder: opto-mechanical

Dimensions (W x H x D): 70 x 36 x 125mm