Major III is the next chapter in the revolutionary history of Marshall. This modern go-to classic has been re-engineered for a cleaner more refined design, while the silhouette stays true to its original form. Major III is a modern classic re-engineered with a straight fit headband, slimmed down 3D hinges and rebuilt ear cushions. While thicker loop wires with reinforced rubber dampers that contribute to the overall solid build quality. Control your headphones and phone functionality with the one button remote with microphone located on your detachable 3.5 mm cord. With a few simple clicks you can play, pause and shuffle your music or answer, reject and end a call. Detachable cable. Foldable. Adjustable headband. 3.5mm jack . 40mm driver. Compatible with universal smartphones. Rechargeable battery (included) . Rechargeable battery.