Koss Porta Pro

The Koss Porta Pro is a collapsible on-ear headphone with an adjustable headband, foam cushions and pivoting earplates that reduce pressure on the temples. Its 60-ohm dynamic drivers deliver a warm sound with solid bass through a standard 3.5mm plug, and the open design lets outside noise through. It suits listeners who want comfortable, inexpensive wired headphones with a retro look.