Representing the next-generation of audio-technicas ART monitor series, the A550Z high-fidelity headphones deliver a premium high-fidelity sound performance, featuring newly designed 53mm drivers. Innovative 3D wing support for a great fit and long-wearing comfort. Distinctive matte black finish. New 53mm large drivers for high-fidelity audio performance that offers both power and detail. Innovative 3d wing-support for a great fit and long-wearing comfort. 3m cord length. 3.0m cord. 3.5mm jack with 6.3mm adaptor. 53mm driver. (not included). Manufacturers 2 year guarantee.