When a meeting room is used for presentations or conversations, sound masking ensures the participants are not disturbed by outside office noise. However, they still need acoustic control – over the sound masking system’s volume, for example. The LogiSon Sound Masking System’s keypads give users the ability to adjust the masking and paging volumes, or mute them. This feature is particularly useful in rooms also used for video or teleconferencing, when the sound masking system must be turned off so it doesn’t interfere with a microphone.