jimmyt 5 I made a microphone isolation shield out of plastic mesh and two B-89 acoustic foams. I cut a thick plastic sheet as a bracket to support?the light microphone?isolation shield {35x85 cm} and attached it to my microphone stand.?The microphone isolation shield blocks unwanted noises and achieves a more crisp and clean sound.?I have a boom-type microphone, so I can also record music from my acoustic guitar.? BTW the B-89 insulation foam is made in Japan. Thanks.