STUDIO HEADPHONES Building on our heritage of studio monitors, the MC-250 headphones offer the precision and clarity Mackie is known for for its professional, close-fitting design. Featuring a reference quality 50mm driver for clear, distortion-free sound that can keep up with the most demanding applications, plus an ergonomic headband and ear cushions that provide hours of listening comfort. A 1/4 ”adapter, a soft protective pouch and a detachable cable are included with the MC-250 headphones. Perfect for mixing, critical listening and audiophile grade personal listening. The MC-250 headphones let you carry Mackie's studio sound, trusted by artists from around the world, wherever you go.