The Yamaha HPH-250M Compact Closed-Back Headphones with Boom Microphone Black are a circumaural, over-ear design with an integrated electret condenser boom microphone well suited for broadcast applications, film sets, and theater communications. The 20 Hz to 20 kHz and 95 dB/mW SPL ensure professional-quality performance, while the closed-back design provides a maximum isolation. The flexible microphone boom is detachable and connects to the left earcup. The fixed 6.6' cable offers a 3.5mm TRRS connector.