Zelotes E-sports Game 7 Key Mouse Synchronized Breathing Lamp Wired Optical Mouse 5500 Dpi 100% brand new and high quality. Buttons: 7 buttons with scroll wheel. Switch Life: 5 million cycle. The Max DPI: 5500DPI. Size: 127(L) x 85(W) x 37(H)mm. The DPI LED color light will be constantly changed after set up