Card Reader     SmartCombo Series     EasySIM Series     ExtreMe Series   Hub     SmartCombo Series1     ExtreMe Series   Mouse     ExtreMe Series   Earphone     BestCom Series     ExtreMe Series   Laser Presenter   Keyboard   Accessory               Home > Products > Laser Presenter Series > PE-300       32MB/ 64MB/ 128MB/ 256MB/ 512MB/1GB/2GB     Specifications Windows 98 Second Edition, Windows ME, Windows 2000, Windows XP,Linux 2.4 or higher, Mac OS 9.0 or higher No battery required USB 2.0/ 1.0