SONY Monitor Headphones MDR-M1ST This is the SONY MDR-M1ST monitor headphones. I purchased this as a spare and kept it in storage; it is new and unused. I only took it out for the photos. A Sennheiser cable adapter (female 6.3mm to male 3.5mm plug) (1,250 yen) is included, so you can use it with music players that only have a 3.5mm plug (see photo 5). This item is originally 36,300 yen, but I am offering it for 23,000 yen (including shipping). Thank you. Below is information from the manufacturer's website. "That's where the excitement begins" With a high-resolution sound environment, the sound quality, refined over approximately four and a half years, achieves both a robust mid-range and a sound image that allows you to see the overall sound. While focusing on the mid-range, which is important in music, you can also clearly hear the low and high frequencies. Sound image that faithfully reproduces the performance space By adopting a uniquely developed driver unit, it directly and accurately reproduces the high-resolution sound range that exceeds the audible range. You can broadly see the entire performance space, such as the arrangement of instruments and the feeling of the air in which the sound resonates, realizing sound quality that is exactly the same as the original sound image. Functionality and durability that can withstand professional use The use of silicon rings in the joint parts thoroughly reduces noise that is likely to occur when moving the body. The ergonomic, three-dimensional sewn ear pads provide comfortable long-term wear. Furthermore, the durability of the moving parts and the impact resistance have been improved, realizing quality that can withstand professional use. Handmade manufacturing by skilled craftsmen Manufactured by Sony Taiyo Corporation, which produces professional audio products. Under the quality control cultivated in professional products, it is carefully handcrafted one by one by skilled workers and shipped after rigorous inspection.