The HBM-50 from Anchor Audio is a dynamic unidirectional headband microphone compatible with MegaVox 2, MiniVox, AN-Mini and TourVox personal PA systems, and can also be used with sound systems equipped with 1/4 inch mic inputs.The HBM-50 provides hands-free operation to first responders, tour guides or lecturers, and features a 3 foot cable with a 1/4 inch connector.