Rechargeable Wireless Mouse: Built-in rechargeable battery, with a charging cable No need to change batteries Its widely compatible with laptop/ computer that with USB port, support Windows XP, Windows Vista, Win7/8,10, Mac OS system Super Silent Click: Special soundless design for the right and left buttons, make you concentrate on working or playing games without disturbing others Stable & Accurate Tracking: 2 4GHz wireless mouse, up to 10 meters ultra long-distance and stable wireless transmission 1000/1600/2400 CPI free switch to meet your needs with high precision The higher CPI, the faster the cursor on your screen will move Energy Saving: At the bottom have 2 ON/OFF button, top one for controlling the mouse, below one is LED light switch, you can turn off the light at any time to help save battery Unique Design: Ergonomic shape and smooth touching make it be comfortable in your hand Soothing light lights up the mouse in dark, it can be turned off by the bottom light switch (Note: Plug the USB receiver into laptop/computer, turn on the light mouse switch then you can see the real light color of the mouse)