Koss Phone Numbers and Emails

Toll-Free Number:

  • (800) 872-5677

Customer Service:

  • (414) 967-5000

Koss Email:

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Contact Information

Koss Website:

Koss Help Center:

Corporate Office Address:

Koss Corporation
4129 N. Port Washington Ave.
Milwaukee, Wisconsin 53212
United States

Other Info (opening hours):


Monday - Thursday: 8:00am - 4:30pm

Friday: 8:00am - 3:00pm

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