This is a closed-back planar magnetic headphone made by Audeze. I haven't used it much since I bought it, and I haven't had a chance to use it recently, so I'm putting it up for sale. The main unit is in beautiful condition, and there is no significant wear and tear on the headband or pads. All accessories are included. Also included is an E4UA MiniXLR 4pin to 3.5mm conversion plug. This allows you to use balanced cables for 3.5mm headphones and earphones. A 16-core 4.4mm balanced cable is also included. I will clean and disinfect it again before shipping. AUDEZE Audeze Planar Magnetic Closed-Back Over-Ear Headphones LCD-XC 2021 CLOSED-BACK HP