Superlux Professional Monitor BLACK HD681EVO/B Semi-Open Headphones,

Driver unit: 50mm dynamic type / neodymium magnet Sensitivity: 98dB SPL/1mW, Frequency response: 10~30,000Hz Maximum input: 300mW, Impedance: 32Ω Cable: Detachable straight cable from headphones, two lengths included (1m and 3m), Connector: 3.5mmφ gold-plated stereo mini plug Accessories: 3.5mm to 6.3mm gold-plated adapter plug, 1m and 3m headphone cables (one of each), headphone cable retaining clip, carrying pouch