Hi. As title said basically. My cute 701C came with a pair of MDR-A20 with integrated remote and unfortunately, are the only way I can listen to the device for now. Back then new units often came with headphones using the remote plug, and a separate adapter (from walkman-archive: ) I'm not even sure the adapter came with units other than the 701C so it may be a pointless hunt but I'm giving it a try. Alternatively, if someone has one of those remotes with removable headphones (revealing a headphone jack at the end), I'm interest to purchase them from you as well .