Model Number: ATH-R70x Brand: Audio-Technica Professional Open-Back Reference Headphones Audio-Technica's professional open-back reference model. Accurately reproduces the entire audio spectrum with a newly designed driver based on headphone technology and an optimized acoustic circuit. Used for less than 100 hours, purchased new about 4 years ago. No abnormalities found in the moving parts. Includes the original box, manual, storage bag (unused), cable, and a screw-on phone adapter. https://www.soundhouse.co.jp/products/detail/item/262162/?srsltid=AfmBOooSVjksi1IqQxWmSKgUzOcMcwe2x_ZmDntmxvgunKEBLAAGOQnj https://www.amazon.co.jp/okcsc-%E3%82%A4%E3%83%A4%E3%83%BC%E3%83%91%E3%83%83%E3%83%89-%E3%83%98%E3%83%83%E3%83%89%E3%83%9B%E3%83%B3%E3%83%91%E3%83%83%E3%83%89-Audio-Technica-ATH-R70X%E3%83%BBK240%E3%83%BBK52%E3%83%BBK72%E3%83%BBK92%E3%83%BBK275%E3%83%BBK545%E3%81%AB%E9%81%A9%E5%90%88/dp/B0DKJLLKH8