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Koss Headphones 60th Anniversary Billboards

We premiered our first billboard in 1972 with a picture of a yellow smiley along with a simple question: "Ever Wonder Why He's Smiling?" 

Koss Stereophones Headphones SmilingBillboard_no headphones

Weeks later, we revealed an updated version, which answered the question:

Koss Stereophones Headphones Smiling Billboard

Ever since, the Koss billboards have become an iconic staple in Milwaukee.

Our newest billboards celebrate the 60th Anniversary of John C. Koss' invention of the World's First SP/3 Stereo Headphone (& our 60th birthday).

And also give a glimpse into the future, stay tuned.