Audio-Technica UE-O Omnidirectional Microphone for selected UniPoint and Engineered Sound Microphones vocoder PS-REL has a relay that

PS-REL has a relay that detects the presence of AC power

The RØDE VideoMic is a professional grade 1/2" condenser shotgun microphone designed for use with consumer video cameras and personal audio recorders

wireless footswitch

many surge suppressors are designed to “take a bullet” and sacrifice internal parts to save your gear

or for in-studio production

Audio-Technica UE-O Omnidirectional Microphone for selected UniPoint and Engineered Sound Microphones vocoder PS-REL has a relay thatFrom Audio Technica, the UE O Omnidirectional Element replaces the elements found in the U851, U853, U857, U873R and U891 Unipoint Series microphones. The omnidirectional polar pattern provides a focused pickup and effectively minimizes off axis ambiance and feedback.