The SS201 is a simple one to one communication system designed to be used in a sterile environment. The antibacterial membrane inhibits the growth of bacteria, mold and mildew. It is resistant to chemicals and household cleaners and the station is designed to be water tight when used with a proper 3 gang electrical back box BBF910 (for flush mounting) or BBS910 surface back box. The convenient 'simplex' operation allows the operator to push the TALK button when they need to talk and release to listen. When the conversation is over, either party can cancel the call by pressing the CANCEL button.