The ProCo Panic Button Microphone A/B and Muting Switch is an active microphone signal routing device that offers clean reliable performance with any balanced or floating low-impedance (150 ohm nominal) microphone or signal source. The foot-operated pedal allows a singer or speaker to reroute the microphone signal from Output A to Output B. The Panic Button may also be set to operate as a momentary push-to-talk, momentary push-to-mute, or latching microphone muting switch. The Panic Button is ideally suited for praise ministers, speakers and professional instrumentalists who need to communicate with their roadies (especially singing drummers and guitarists).

To change the routing of the microphone signal in the A/B operating mode, the user simply depresses and actuates the switch. The microphone signal path can be routed between Output A (front of house) and Output B (stage monitors or personal roadie). If the input signal is from a condenser microphone that is phantom-powered from the FOH mixer, the phantom continues to power the mic as it is routed to Output B. There is no "pop" switching between channels. A gain pot is located in the battery compartment that controls the level of Output B. If the battery in the Panic Button dies, the circuit automatically reverts to Channel A.

Dip switches, located in the battery compartment, are used to select the desired Panic Button modes of operation from A/B switch to muting switch, momentary push-to-talk, momentary push-to-mute to latching. To change the route or 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 Panic Button may either be actuated by hand or the unit may be used as a footswitch.

The status indicator light displays the condition of the microphone signal regardless of the selected mode of operation. When the light shows green, it indicates that the microphone is "on" or routed to Output A. Red indicates that the microphone is muted or "off" or that the signal is routed to Output B. Connections between the Power Mute and the microphone or signal source and to the sound system are made with standard mic