Koss Closed-Ear Design Headphones60Hz-20kHzClosed-ear design for maximum isolationDynamic components giving a high clear frequency responseAdjustable headband for best fitStraight, single-entry 4' cord with 3.5mm plug Length 9.5" Width 9" Height 3" Weight 0.44 lbs. Koss Closed-ear Design Headphones. , Audio, Electronics
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