Details Product Description 100% brand new and high quality. · Buttons - 7 buttons with scroll wheel. · Tracking systems - Optical. · Ergonomics design; suitable for all kinds of the hand type and computer. · 7 keys; more convenient for game operations. · DPI adjustable provides precise positioning. · Custom macro settings; perfect suitable for more complex games. · Pack well; Pretty good gift for your child; husband and friends. · DPI Switch - 800/1200/1600 DPI Adjustable. · Key Life - 10 Million Times. · Size - 133* 78 * 40 mm. · Weight - about 150g. · Color - Black and white. · USB Cable Length - about 140cm. · Breathing Light Color - Changeable(Press the mouse's "DPI key" and "Forward" side key to turn on/off backlight). · User for - The high-end players & gaming professional players for Dota; LOL; CSGO; etc. · Warm Tips - The "wheel" on the side of mouse is just a decoration; couldn't rotate. Thanks for your understanding. · Ultra-precise Scroll Wheel. · Optical technology works o