... s needs as much as possible!Application:Widely use to office & hotel meeting, e-classroom, e-school, kiosk, ... , include images, flash, video files. Microsoft Office file.* Annotation function on Microsoft Office PowerPoint and Word file.* Sound and Video recording ... touch panelOperating SystemOperation System Linux / Windows 7, windows 2007, window XP HfView VX OSPowerPower Supply USB powerVoltage ...