HAVIT Wireless Gaming Mouse (4000DPI) SWITCHABLE DUAL MODES - Easily switch between game mode and audio control mode, 7 buttons and 2 modes make it more than enough to manage your gaming or entertainment need. (Functions of these keys vary in different modes which virtually double its value) PLUG & PLAY - Comes with a tiny USB Nano receiver (stored within the back of the mouse). Just plug it into your computers USB port, and youre ready to go with no extra driver required. Compatible with Win 98/2000/ME/XP/Vista/7/8 /10, Mac OS (Note: the mouse's back and forward keys cannot work in game on mac OS) 2.4GHz WIRELESS  Advanced 2.4GHZ wireless technology ensures reliable connection with an increased working distance of up to 18m and eliminates delays, dropouts and interference. ABLE-TO-DEACTIVATE LED LIGHT - The LED light can be independently turned off that you dont have to stand the annoying light at night anymore. These 3 LED lighting settings (Red/Green/Blue) can be simply activated by a single key. ERGONOMIC COMFORT - Our HV-MS988GT cordless gaming mouse is ergonomically designed to fit snugly under your palm, providing you an incredibly comfortable gaming experience in-hand.