GRADO PS500e https://knicom.co.jp/product/ps500e/ This is a modified PS500e with detachable cables, a rare find. It uses a 3.5mm 3-pole connector. I've been keeping this as part of my collection, but I'm selling it to clear out some space. Please note that the headband is the resin type from the lower-end models, not the leather of the higher-end models. The pin assignment is TRS (Hot, Cold, NC) for both left and right channels. The Sleeve is not connected (Non-Connection), so please be aware that some Hifi/man genuine cables (Hot, NC, Cold) for example, cannot be used. Included are the main unit and the original box. The transparent headphone stand is for photography purposes and is not included. As a bonus, I'm including a spare cable. It's a JSHifi Hakuryu (I think, I don't quite remember) with the earphone side re-terminated to 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 looking.