SHURE / SE215 Special Edition, translucent blue, model SE215SPE-A. These have MMCX connectors, so you can use them wired or wireless with your preferred cable or adapter. I also obtained these on Mercari, but I haven't had a chance to use them, so I'm putting them up for sale. Shipping is included, via Yu-packet Post Mini (160 yen) + envelope (20 yen).