[Product Feature]

* Great frequency response, including deep bass performance
* Comfort Zone setting lets you adjust temporal pad for a comfortable, secure fit
* Collapsible for maximum portability when listening on the go
* Multipivoting ear plates and adjustable headband for added comfort
* Connector Type: 1 x Headphones (Mini-phone stereo 3.5 mm) , including convenient carrying case

[Description]
Product DescriptionAmazon.com
Koss introduced the PortaPro headphone back in 1984, and they:ve been a hit ever since. To this day, they still deliver excellent sound quality, particularly for phones in this price range.Phones are collapsible, for maximum portability.

[Detail]

* Product Dimensions:6.8 x 2 x 8.9 inches ; 6.4 ounces
* Shipping Weight: 1 pounds (View shipping rates and policies)
* Shipping: This item is also available for shipping to select countries outside the U.S.
* ASIN: B00001P4ZH
* Item model number: 155491