GRADO PS500e https://knicom.co.jp/product/ps500e/ This is a valuable modified PS500e with detachable cables. It uses a 3.5mm 3-pole connector. I have kept this as part of my collection, but I am selling it to organize my belongings. Please note that the headband is the resin type of the lower model, not the leather of the higher model. The pin assignment is TRS (Hot, Cold, NC) for both left and right channels. Since the Sleeve is not connected (Non-Connection), please note that some Hifi/man genuine cables (Hot, NC, Cold), for example, cannot be used. Included items are the main unit and the outer box. The transparent headphone stand is not included as it is photography equipment. As a bonus, I will include a spare cable. It is a JSHifi Hakuryu (I think, I don't remember exactly) with the earphone side terminals replaced with a 3.5mm 3-pole connector. I have confirmed that it works. - Brand: GRADO - Model: PS500e - Series: PROFESSIONAL SERIES - Type: Open-back headphones Thank you for viewing.