M40 headphones feature powerful 40mm drivers and a comfortable on-ear design, ideal for long hours in the studio monitoring your mixdown tracks. With an impressive 36-20kHz frequency response, the M40 headphones deliver the detail and accuracy needed for every kind of music. The leather cushioning on the flexible headband and ear cups provides a fatigue-free listening experience for even the longest-lasting, most demanding sessions. The detachable cable is 6 ft. (1.8m) long and includes a 1/4-inch adapter for compatibility with all equipment. The M40 brings M-Audio's industry-leading studio monitor engineering to personal headphone audio.