FOR IMMEDIATE RELEASE KOSS PARTNERS WITH MOSSY OAK® BRAND CAMO Milwaukee, WI USA – July 10, 2012 – Koss Corporation (NASDAQ SYMBOL: KOSS), the Milwaukee, Wisconsin based high fidelity stereophone manufacturer and inventor of the world’s first SP/3 Stereophone in 1958, is pleased to announce a partnership with Mossy Oak. These two industry innovators have partnered to bring the Mossy Oak’s award-winning patterns to the Sound of Koss. Break-Up Infinity® and Break-Up® patterns are hydrographically applied to three different styles of headphones; a full-size stereophone, an on-ear stereophone and two sets of earbud stereophones. The Koss KMO20g is a full size stereophone built for comfort, durability and performance. Dynamic elements are employed for extended frequency response and paired with large leatherette ear cushions that deliver maximum isolation. A tough exterior and additional headband sling make the KMO20g headphones both comfortable and reliable. The Koss KMO15 on-ear stereophone is a lightweight headphone perfect for the outdoor lifestyle. In-line volume control allows for quick and easy volume adjustment without the hassle of fiddling around with the MP3 player. Durability, portability and the Sound of Koss are all seamlessly packed together in the reliable KMO5 earbud, ideal for the outdoors user. The Koss KMO10 earbud includes two earbuds so you never have to go without the Sound of Koss. “We are excited to have the Mossy Oak line of stereophones hit the market,” Michael J. Koss, President and CEO said today, “Both companies have very loyal customers who appreciate and expect quality products. We are thrilled to reach new customers and provide our existing customers with such an exclusive product.” For more information on the Mossy Oak line of Koss Stereophones, please visit www.koss.com.

Koss Stereophones

Koss Stereophones has been headquartered in Milwaukee, Wisconsin since 1958 and is known worldwide for its high fidelity stereophones and audio accessories. Koss Corporation also offers digital audiophile compact disc recordings of American orchestras on its Koss Classic Label. Koss Corporation produces official licensed products of Mossy Oak/ Haas Outdoors Inc. Haas Outdoors Inc. is headquartered in West Point, Miss., was established in 1986 and is home of Mossy Oak (www.mossyoak.com). Mossy Oak specializes in developing and marketing modern camouflage designs for hunters and outdoorsmen. Mossy Oak patterns can be found on a multitude of products worldwide. Haas Outdoors Inc. is the outdoor industry leader in modern camouflage design, international licensing and marketing. Haas Outdoors Inc. markets its services and products under widely recognized brands including: Mossy Oak, BioLogic, Mossy Oak Productions, MOOSE Media, Nativ Nurseries and Mossy Oak Properties. Contact: Drake Dettmann Koss Corporation 414-967-1519 ddettmann@koss.com