The Electro-Voice RSB-2 Referee Mute Switch is designed for referee wireless systems, providing convenient, noiseless microphone muting during officiating. It connects between a TA4-equipped lavalier or headworn microphone and the compatible RE3-BPTRSB bodypack transmitter. The large, positive-action toggle switch is easy to operate without looking, while the built-in belt clip allows it to be worn on either the left or right side. Its noiseless switching prevents clicks and pops, helping maintain clean audio during live events.