Connectivity TechnologyRadio Frequency Special FeatureErgonomic Design, Rechargeable, LED Lights Movement Detection TechnologyOptical 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 . Virtually no delays or dropouts. No need driver, just plug and play 3. 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). 4. Rechargable FunctionBuilt-in lithium battery, you can charge it with our USB charge cable. 5. Wide CompatibilityCompatible with Windows XP/Vista/Win7/Win8/Win10/ME/2000/Mac10.x, etc.