B-Stock, Audio-Technica ATH-A990Z, high-fidelity headphones, lightweight, aluminium housings with a deep metallic forest green finish, 3D wing support for a great fit and long-wearing comfort, premium, soft earpads for comfortable fit, 3.0 m cloth-wrapped tangle-free cable, closed-back, dynamic, frequency range 5 - 42.000 Hz, maximum input power 2.000mW, sensitivity 100 db/mW, imdedance 44 ohms, weight (without): 335 g, B-Stock with full warranty, may have traces of use.