FOR IMMEDIATE RELEASE KOSS RUK SERIES NOW AVAILABLE Milwaukee, WI USA – June 20, 2012 – Koss Corporation (NASDAQ SYMBOL: KOSS), the Milwaukee, WI based high-fidelity stereophone manufacturer and inventor of the world’s first SP/3 stereophone in 1958, today announced the release of the RUK series, available exclusively now on Koss.com. The RUK series includes four styles of headphones that come in a variety of bold colors and original patterns; two in-ear stereophones (RUK20 and RUK30), one on-ear stereophone (RUK40) and a full size headphone (RUK50). The Sound of Koss has never looked so bold. Check out all the RUK products in their different styles and colors now on the RUK Series Page!