1975 KOSS PRO-600AA Stereophones Headphone Set
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1975 KOSS PRO-600AA Stereophones Headphone Set. Tested in excellent condition and graded NM (Near Mint) for only mild signs of age. One of the most classic stereophone headphone sets of the 1970s! This set has tested excellent and comes complete with the original extension cord, 1/4 jack, OEM Box and plastic bag for "pete sakes"!