Datavideo FS-30 Foot Switch For TP-700, TP-800 & TP-900 TelepromptersOver a USB connection to the prompter monitor, the FS 30 Foot Switch provides direct wired control for Datavideo TP 700, TP 800, and TP 900 teleprompters that run dvPrompter Plus software version 1581 or newer. It features three pedals that work independently as well as near silently thanks to non contact photoelectric sensors. It works plug and play and offers control of scrolling text and slides. Features Connects to Prompter Monitor over USB