Zelotes 7 Button 2400DPI Blue LED 2.4GHz Optical Wireless Gaming Mouse (Black) This mouse is intelligent connectivity, no need to code, plug & play (No need CD driver) Ajustable DPI Function: 600/1000/1600/2400,you can change Mouse speed easily;Maximum Acceleration 20G;Polling rate: 250Hz/500Hz Adopt 2.4GHz wireless technology,to ensure smooth operation and let you enjoy wireless gaming,High precision and sleek cool design,Fashion cyborg Style,Ultra-precise Scroll wheel 7 different key has different function,makes it easier to operate during the game.(Left/Right/Mid/Forward/Backward/DPI Loop/Fire Key (Equals double click) /polling rate button/Light Switch Button) This mouse adopts the top class of power saving chip, 5 times power saving than ordinary wireless mouse, standby time is over 36 months