Rechargeable: Built-in rechargeable battery, with a charging cable. Special soundless design for the right and left buttons, won’t disturb others. Colorful Light: 7 different color changes randomly while in use, offering soothing lighting, creating cool and fancy atmosphere for work and play. Home Button: Home button is new added shortcut key on the mouse. (1) For Windows7/8/10, just one click back to the home page, convenient for privacy protection. (2) For Mac, it’s equivalent to ?D shortcut key combination. Energy Saving: The wireless mouse will be in sleep mode in 8 mins of inactivity. And the LED light can be turned off by the bottom light switch. Simply to Use: Comes with a tiny USB Nano receiver (stored within the bottom of the mouse), just plug it into your PC, no need any driver, then you can use it.