The EF1 Series can automatically start showing pictures from an inserted USB stick,* so that the EF1 can be used as digital signage without a set-top box or PC. Using this feature, content can be displayed seamlessly without showing a blank screen display. Whats more, the order of content playback and playback time can be programmed. Content can also be rewritten and multiple displays can be operated via LAN. *Some files cannot be played back even if they are in the supported format. Regarding restrictions, see the operation manual. Multi Monitoring & Control Software (free) is required.