AT8484 Microphone Shock Mount for BP40 5/8"AT8484 Broadcast Microphone Shock Mount. Attenuates noise, shock and vibration transmitted through microphone stands. Inner shock mount ring rotates to engage ball bearings to lock mic securely. Designed to be used with the BP40 and compatible with 5 8" 27 threaded stands. Product Features Attenuates noise, shock and vibration transmitted through mic stands, booms and mounts. Inner shock mount ring rotates to engage ball bearings that lock microphone