SHURE / SRH1840 The SRH1840 is SHURE's flagship model, developed with special materials and precision engineering. It provides ideal acoustic performance for everything from recording to listening. ＜Specifications＞ ■ Professional Open-Back Headphones ■ Type: Dynamic Open-Back ■ Driver: 40mm Neodymium Magnet ■ Sensitivity: 96 dB ■ Impedance: 65Ω ■ Frequency Response: 10Hz～30,000Hz ■ Maximum Input: 1000 mW ■ Weight: 268g ■ Cable Length: Approximately 2.1m (Dual-entry, Detachable) ■ Plug: 3.5mm Stereo Mini Plug (Gold-plated) Please understand that this is a used item and purchase it with the understanding that it is non-refundable/non-returnable.