Koss Porta Pro Black On-Ear Headphones, Retro Style, Collapsible Design, Case Included, Black

Designed for Deep bass performance Comfortable, secure fit with adjustable headband and multi-pivoting ear plates Two adjustable temporal-comfort zone

Porta Pro® On Ear Headphones - Koss Stereophones

Porta Pro® Black - Koss Stereophones

Koss Porta Pro Utility On-Ear Headphones Plus Utility Cord Lightning Cable : Electronics

Porta Pro® On Ear Headphones - Koss Stereophones

Koss Porta Pro Wireless Bluetooth On-Ear Headphones, in-Line Microphon

Koss Porta Pro Black On-Ear Headphones, Retro Style, Collapsible Design, Case Included, Black : Electronics

Koss Porta Pro Limited Edition On-Ear Headphones, in-Line Microphone, Volume Control And Touch Remote Control, Retro Style, Includes Hard Carry Case, Wired

Koss Porta Pro On Ear Headphones with Case, Black / Silver Black/Silver

Koss Porta Pro Headphones Ear Phones Red Hot Collapsible Design with Travel Bag Included : Electronics