M-Audio’s HDH40 headphones feature powerful 40mm Neodymium magnet drivers with a comfortable design. Perfect for long hours in the studio monitoring, mixing or mastering your tracks. With an impressive 15 Hz – 28 kHz frequency response, the HDH40 headphones deliver the detail and accuracy needed for every kind of music. The flexible headband and ear cups provide a fatigue-free listening experience for even the longest-lasting, most demanding sessions. The HDH40 brings M-Audio’s industry-leading studio monitor engineering to personal headphone audio.