Protect your wireless headset fitness microphone from spit, sweat, and the elements with this 10-pack of Black Windscreens. Most headset microphones for fitness are tuned to perform best with a windscreen installed. Help to ensure that your voice sounds its best. These foam windscreens are custom-built for AV Now, and our exclusive design is compatible with Shure SM-31FH and Shure PGA31 headset microphones. This black foam windscreen helps with limiting breathing noises during intensive group fitness instruction.