The 4066 Omnidirectional Headset Microphone has become an industry standard for theatre and performance applications. The headset construction allows the mic to be mounted on either the left or right side. The microphone element itself is constructed with a double-vent protection system and the materials inside are water resistant. These design elements make it very difficult for the microphone to fail due to humidity.

The microdot termination provides a reliable connection to a suitable adapter. Available adapters are TA4F, TA5F and XLR.