TOA TS-771 is a compact and lightweight Chairman unit for TOA Conference systems, designed for easy installation and storage. It features a microphone with an ON/OFF switch to prevent feedback, a priority button to take precedence over delegate units, and a headphone/recording output with volume control. Two dedicated microphone types, standard and long, are available as options. The unit operates on 35 V DC power supplied from the Central Unit and has an internal speaker and contact output.