Pioneer DJ HDJ-2000MK2 Black Brand: Pioneer DJ Color: Black Headphone Type: Closed-back Noise Control: Sound Isolation Model Name: HDJ-2000MK2-K Included Accessories: Φ6.3 mm 3P plug adapter (gold-plated, screw-type) Straight cord Coiled cable Dedicated case Instruction manual Purchased around 2017 at PowerDJ's Ikebukuro store (Ikebe Gakki). I believe it cost around 35,000 yen. I used them at DJ events for about 2 years after purchase, but they have been stored unused for the last 6 years. *Due to either improper storage or aging, there is stickiness on the resin part of the left side only. (See images 9 and 10) *Similarly, there are some small cracks and peeling on the left ear pad. Ear pads are sold separately and can be replaced, but the condition is not bad enough to warrant replacement. *Regarding the coiled cable, the locking button on the connection between the cable and the main unit has become loose due to frequent use of this cable, and the lock does not engage. You can only attach and detach it by plugging and unplugging. (See image 13) *None of these issues affect listening, but I do not recommend them to those who are concerned. *Please understand that these are used items before purchasing.