The Shure SRH240A Headphones are professional closed‑back over‑ear headphones designed for monitoring, home recording, and everyday listening. They employ 40 mm neodymium dynamic drivers that deliver rich bass, clear mids and detailed highs, calibrated for both consumer and professional audio devices. With a comfortable padded headband and earcups, the headphones are built for long sessions, and the closed‑back design helps reduce ambient noise for better focus and accurate listening. Key Features: 40 mm neodymium dynamic drivers provide full‑range sound with deep bass and clear highs Frequency response from 20 Hz to 20 000 Hz for accurate reproduction of the full audio spectrum Impedance of 38 Ohms and sensitivity of 107 dB/mW make them compatible with a wide range of audio sources Closed‑back circumaural (over‑ear) design helps isolate sound and reduce background noise Padded adjustable headband and ergonomically designed earcups for comfortable wear during long sessions