Wireless Mouse, 3000DPI 2.4Ghz Optical Wireless Professional Optical Mouse with USB Nano Receiver for Laptops/PC /Computer/Tablets, 6 Colors LED Optical Gaming Mice, 6 Buttons (black) TWO SIDE BUTTONS: There are two side keys on the mouse for backward and forward function. ERGONOMIC DESIGN: Ergonomic Design, comfortable and great hand-feeling offers right-handed pain free usage, can be used for a long time without fatigue. HIGH PRECISION: 500Hz polling rate ensures smooth and high-speed movement, enjoy games more freely. EASY to USE: Plug& play, no need any drive, easy to use. A very small size for nano receiver, it can be plugged and stay on USB port of PC/notebook without interference. The slot on the bottom of the mouse is a thoughtful design, the receiver can be stored in the slot when you do not use it, easy for storage. 6-LED LIGHT: Six breathing LED lights, plus a variety of active effects.