Koss Pro4S Studio Headphones for $102

Only a small number of retailers carry the Koss Pro4S studio headphones, and of those, it is on sale in NEW Condition for $102~ at Amazon by Amazon actual. Its regular price is $150 elsewhere. They average 4.5 out of 5 based on nearly 50 customer reviews. They have detachable cables and you can use either side for music input. They also pass-through audio-out through the unused of the 3.5mm ports. These are closed over-ears. Picture #5 in the gallery over there shows a blown-up diagram of the earcup mechanism.