The Cambridge Sound Management QT-CRE Conference Room Edition sound masking system is designed for conference rooms, meeting rooms and boardrooms. The control panel is fitted inside the conference room to enable the system to be switched on and off easily and an illuminated sign provides clear indication to the occupants that the system is in use. Emitters are fitted outside the room to emit a professionally engineered low level background sound into the immediate area, making the conversations and speech from inside the room less intelligible. The system is an ideal retrofit solution to speech privacy where the construction of the building and minimal design of offices makes sound privacy an issue. Eight emitters are included with this system for 'out of the box' protection of a meeting room with up to 12m (40ft) of exposed wall.