Re-designed specifically for ENG and film recordists, the first HD 25 was actually used as in-flight headphones on Concorde, giving an improved listening experience in a very noisy environment. It is not difficult to see why they were soon coveted as the ultimate alternative monitoring headphone for recordists and DJs alike due to their light weight. Closed ear designs with extremely high external noise attenuation. Flip-away earcups, can be locked securely in place. High wearing comfort due to a splittable headband and leather-effect earpads. Single-sided, straight 1.5m cable, steel cored for reliability, supplied fitted with a straight 3.5mm 3-pole jack plus adapter to 6.35mm A-gauge 3-pole jack plug. Impedance 70 ohms. Frequency response 16-22000 Hz, 200mW load rating.