1)4 usb 1.1/2.0 ports
2)Single chip integrated USB hub controller with embedded proprietary
processor
3)Driverless for Windows Vista、XP、2000、 98SE、 Linux2.4 and Mac OS 8.5 version
4) Black compact panel and smooth movement which suitable for all kinds of mechanical mice and optical mice use
5) Flash blue light or seven colors light around the pad
6)The cuff is made of environmental PU; it feels comfortable and can reduce your
tired feeling. It is an ideal protecting products for your wrist
7)with SD/MMC card reader