Koss PortaPro (with Case)

Pros: Low price decent sound

Cons: Plastic bits holding the top sliding adjustment broke.

Summary: Like I said the plastick bits that clam the two metal head adjusting bars together snapped many years ago. At first I thought ok ditch those even though they were my favorites at the time but then before tossing then I thought to slip a couple of pieces of heat shrink tubbing onto the bars easy to accomplsh as the headphones feel into two pieces when the oricial plastic bits broke. Once the heat tubing was shrunk down to a tight fit the headphones were as good as if not better than new.