The Proel HCM23SE mini headset microphone is designed for speech applications that need freedom of movement and a secure fit. Its small size and light weight make it suitable where minimum visibility is important, including theatre, video use, dance, and gym instruction. The microphone uses a back electret condenser capsule with an omni-directional polar pattern. It comes with a 3.5 mm plug and 3 different adapters for use with most popular wireless systems.