Audio-Technica ATH-M50x Professional Monitor Headphones, Wired, Black I purchased these here, but the closed-back design doesn't suit me, and I don't plan to use them for an extended period, so I'm selling them. The total usage time, including the previous owner's use, is about 10 hours. Please understand that these are used items before purchasing. I am a private seller, so I may not notice all imperfections. Please purchase only if you understand that these are used items. - Brand: audio-technica - Model Name: ATH-M50x - Included Accessories: Carrying pouch