The TS-701 is a chairman unit for the TS series conference systems. Placing the speech button in the ON position allows a chairman to speak and disables the speaker to prevent feedback. If the speech button is placed in the OFF position, the microphone cannot be used but the speaker is turned on, allowing the voices from delegate units ( TS-702) to be monitored. By pressing the priority button, the chairman unit can take precedence over any delegate units. The TS-701 is small in size, and can be easily installed and put away after use.