Koss Corporation revenue for the last year amounted to 19.55 M USD, the most of which — 12.27 M USD — came from its highest performing source at the moment, Stereo Headphones and Related Accessories, the year earlier bringing 13.10 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Koss Corporation 9.80 M USD, and the year before that — 9.85 M USD.