The Power Mute may be set to operate as a momentary press-to-mute, momentary press-to-talk, or latching (mic on/mic off) microphone muting switch.

The Pro Co Model CDPM "Power Mute" Selectable Microphone Muting Switch is an active microphone signal muting device that offers clean reliable performance with any balanced or floating low-impedance (150 ohm nominal) microphone or signal source. The Power Mute may be set to operate as a momentary press-to-mute, momentary press-to-talk, or latching (mic on/mic off) microphone muting switch. The Power Mute is ideally suited for use in broadcast, disc jockey, sports announcing, boardroom, and live entertainment applications when the need to mute a microphone output is required.

Dip switches are used to select the desired Power Mute mode of operation from momentary push-to-talk, momentary push-to-mute to latching. To change the condition of the microphone signal, the user simply depresses and actuates the switch. In momentary mode, the condition will change when the switch is pressed and will revert to its original condition once the switch has been released. In latching mode, the signal condition will change when the switch is pressed and actuated. It will remain in that condition until the switch is depressed and actuated again. The switch on the Power Mute may either be actuated by hand or the unit may be used as a footswitch.