2000 Limited Edition Models audio-technica ATH-A900XLTD Headphones, Headphone, Complete Set Operation confirmed. Sound output is working without any problems. The ear pads show some deterioration due to aging, but the rest of the exterior is in very good condition. Accessories are also in good condition, including the outer box. ・Accessories Main unit 6.3mm gold-plated stereo conversion plug adapter Instruction manual Outer box Complete set of accessories. 【Product Description】 Unlimited sound refinement hidden in the limited color crimson (hiiro) Equipped with a specially designed driver that produces a clear tone Crimson (hiiro) aluminum housing in a limited color that suppresses unwanted vibrations and realizes high sound quality. Equipped with a φ53mm driver specially designed for the A900XLTD that produces a clear tone. Equipped with a large φ53mm driver specially designed to reproduce the transparency and airiness of sound. Employs an OFC-6N bobbin-wound voice coil that allows for rich expression in a tight sound field. Employs an OFC-6N bobbin-wound voice coil that enhances the driving force of the driver unit. OFC-6N+OFC input cord with a left and right independent ground wire (4-core) structure for both left and right outputs, prioritizing sound quality. D.A.D.S. structure (PAT.) for rich and expansive bass reproduction. ※ Double Air Damping System: Achieves extended low frequencies by effectively using air springs. 3D wing support (PAT.) for comfortable wearing. Total ear fit design that reduces pressure.