Four Gear Luminous Optical Mouse $ 7.12 Product information: Type: Optical mouse Mouse size: rat ( 120mm) Applicable model: desktop computer Photoelectric resolution: 3600 (dpi) Number of keys: 6 (keys) Interface: USB Operating distance: 1.5 (m) Working mode: photoelectric Roller direction: touch roller Features: game mouse, ergonomics Wire length: 1.5 (m) Product size: 135x70x40 Color: black Packing list: Mouse X1PCS