LAVALIER MICROPHONE ISOLATION SHIELD SYSTEMIsolate IT microphone isolators with Sorbothane are the most effective isolation system for lavalier microphones. Contained within the sleek durable microphone pocket is a liner of advanced Sorbothane polymer. Sorbothane absorbs up to 94. 7% of vibration and noise energy ensuring optimal sound quality. These professional grade isolation mounts were designed over the past 5 years with significant feedback and testing from audio recording professionals.