Profeional Colorful 6 Buttons Optical Backlight 2400 DPI USB Wired Gaming Mouse Mice Ergonomically Computer Mouse For PC The side button + DPI button can turn off the light, and different colors of the mouse will have different lights.OCD patients please do not buy 1.What this mouse design for ? This wired mouse is design for game , and also supports office and home use . 2.This mouse can glow ? Yes , when you connect it with PC , it will glow , it is build in Breathe LED , the color of LED will change between purple/red/blue . 3.Who about the button ? Mouse pulley(Anti-skid design) , left/right button , DPI button , Forward and Back button . 4.What's the length of the wired ? The wired is 140 cm . 5.Why you stre it's 150g ? Because as for playing game or office use , if the mouse is heavier , you will feel your hand more comfortable . 6.What's the dpi , and what's the DPI of this mouse ? The number of mouse samples per inch. Clearly speaking, that is, the mouse moves an inch, the mouse itself can be collected from the mobile surface to change the number of points. 800-1600DPI is for office or home use , if more than 1600 dpi , it is for gaming , the DPI can be adjusted . The DPI of this mouse is 800-1600-2400-3200 . Specification: Material: PVC Way of Working: Game-level optics Resolution: 800/1200/1600/2400DPI Features: Ergonomic design Mouse wire: Radiation braided wire Interface Type: USB Working current: 100mA Key life: 5 million times or more Speed: 30 inches per second Expre Keys: 6 Size: 13.5*7*4cm Color: As shown in picture. Great gift for Overwatch fans ! Package included: 1 x Wired mouse