STUDIO HEADPHONES Building on our studio monitor heritage, the MC-250 headphones deliver the precision and clarity Mackie is known for in its professional, closed-back 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. Included with the MC-250 headphones is a 1/4" adapter, a soft protective bag, and a detachable cable. Perfect for mixing, critical listening, and audiophile-grade personal listening. The MC-250 headphones let you take Mackie's studio sound, trusted by artists around the world, wherever you go.