The over-ear SH-55GT is a high-quality Japanese-made headphone with an impedance of 8Ω. - Model: SH-55GT - Impedance: 8Ω - Country of Manufacture: Japan - Design: Over-ear - Connector Type: Stereo mini-plug Thank you for viewing. Thank you for viewing. This is a new item, but without the box. Sound output has been confirmed. I'm considering whether to sell it because of its indescribable coolness. I couldn't find the same product when I looked it up, so I'm listing it at a price that reflects my reluctance to sell. If you find the same item being sold somewhere, please let me know.