1. Decompression Crystal Ball Design & Customized RGB Led Light The Mouse has a crystal ball in the middle which can play as a decompression toy.The LED light color are 5 RGB Light Mode which can bring you pleasure as a gamer. 2. 2.4G Stable Wireless Transmission: More secure and precise, the transmission distance can reach to 10 meters(approx 30ft). Virtually no delays or dropouts. No need any driver, just plug and play! 3. Ultra Energy Saving & Durable: Multi-stage power saving mode, less power consumption. There is a button at the bottom of the mouse with three adjustable modes: ON, OFF, ON(with Back Light).The mouse will be in auto sleeping mode in 8 minutes of inactivity. Also it has 500,0000 Times keystroke Test and perform well. 4. Rechargable Function: Built-in 600Mah lithium battery, you can charge it with our USB charge cable. 5. Wide Compatibility:Compatible with Windows XP/Vista/Win7/Win8/Win10/ME/2000/Mac10.x, etc.