The Sony ECM-77B Omni-directional Electret Condenser Lavalier Microphone is a high-quality microphone designed for professional audio recordings. With a frequency range of 40 Hz to 20 kHz and an omnidirectional polar pattern, this microphone captures clear and versatile sound. Its compact form factor and black color make it easy to discreetly wear for personal recordings or live performances. Made by Sony in Japan, this microphone ensures reliable performance and top-notch audio quality.