Koss Portapro Headphones

For service of all models covered under the Lifetime Warranty policy, send the stereophone along with $6.00 each shipping and handling to the address below. For all repairs of non-warranty product, please contact Koss USA for payment details.

In the United States:
Koss Corporation
4129 N. Port Washington Ave.
Milwaukee, WI 53212
1-800-USA-KOSS (1-800-872-5677)
email: customersupport@koss.com