... cable...) :3pcs pen/USB CABLE 1PCS/wall-hung accessory 1set/Disk 1pcs Specifications1.Interactive dual-writing Whiteboard. 2 ... in different areas.Support multi whiteboards connect, support writing, drawing, operation, video play, audio ,etc resource ... pen width, different pen styles. With spotlight, camera, amplify glass, mask, record, save, playback, print, email, etc. 80" Interactive dual-writing ...