The version CO-3 Earworn Microphone -Sennheiser, Beige features a 4-pin Hirose connection for attaching to compatible Sennheiser wireless transmitters. It offers a cost-effective solution for hands-free speech applications without sacrificing sound quality. The microphone features a low-profile rigid boom with a fixed length, and ear-loop designed to mount onto the left ear. Its omnidirectional microphone capsule provides a generous pickup area and is most effective in minimizing noise caused by breathing, popping, wind and general movement. The CO-3 is optimized for speech and is an ideal solution for houses-of-worship, presentations, lectures and anywhere a hands-free, high-quality, low-profile microphone is necessary.