DPA Microphones d:fine CORE 4066 Omni Miniature Mic Boom, TA4F Mini-XLR, Beige

You can detach the mic boom from the headset mount to switch it to either the left or right side and then reattach it. Humidity, often an issue in theatrical applications, is not a problem. The microphone is constructed with a double-vent protection system and a drop stopper on the microphone boom. Also, the materials inside the mic are water resistant.