Koss Pro DJ 200 for $70

The Koss Pro DJ 200 fold-flat studio headphones are currently on sale for $70 with free shipping, in new condition, with a limit of five per shopping cart, at Amazon.com by Amazon actual where they average 4.7 out of 5 based on 31 customer reviews. They have detachable cords (two included, one normal, one smartphone/tablet), and stereo/mono switch, and a carrying case is included. They have 38 ohm impedance.