1.4 ports usb mouse pad USB1.1/2.0 interface, USB 4 ports for varieties of external USB devices connection demand.
2. Driverless, hot plug and playDriverless (P&P) for Windows Vista, 2000, 98SE, Linux2.4 and Mac OS 8.5 version11) USB stereo speaker powered by usb or external power supply.
3. Inner usb stereo speaker suitable for listening to internet radio or stereo music
suitable for cd, mp3 and mp4 players.
4.The mouse pad is suitable for all kinds of
mechanical mice or optical mice use.