Sovawin Gaming Mouse 6 Buttons 3200DPI Computer Game Mouse Mice high-speed USB Optical Wired for PC Laptop Notebook Desktop 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 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 stress 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 .