B-Stock, JBL by Harman Synchros S500 White, Synchros S500 White over ear headphone - Proprietary LiveStage signal processing, powered by 2 AAA batteries allows for 20 full hours of on-the-go precision listening with JBL LiveStage technology, 50 mm drivers, over-ear design, 117 dB efficiency, frequency response: 10 - 22000 Hz, 30 mW maximum input, includes 1 iOS3 button remote/microphone cable and 1 universal 3-button remote/microphone cable, etui and batteries, colour: white, B-Stock with full warranty, may have slight traces of use