The Shure WA661 Mute Switch provides an easy-access, in-line, tactile feedback switch for muting a lavalier or headset microphone with a TA4F connector for use with a wireless bodypack transmitter. For microphone with TA4F connectors Two-position toggle switch with tactile feedback Robust, reversible metal belt clip No electrical switch noise >100 dB of attenuation for mute Passes bias voltage to power microphones Features a single TA4F output