Koss KPH7w lightweight on-ears for $4

The lightweight Koss KPH7 headphones are available in multiple colors, and at the moment, the white color scheme is on sale for $4 per pair, in new condition, and by Amazon itself. The only catch is that they are part of the Add-On program, so you need to place a $25+ total order (of any eligible items, not just these), otherwise the shopping will simply refuse to let you checkout. You can buy five pairs per color. The other colors are $5+. They average 3.9 out of 5 based on 600+ customer reviews.