Found a pair of new old stock aiwa hp-v057 foam typ ear buds but can not find much on it on the web might get another as they had more of them
Once AIWA was changed to aiwa a lot of the equipment was moved downstream. I've read old articles that indicated that Sony owned part of AIWA starting around 1969 and then assumed controlling ownership around 1992. Once they took over they changed the aiwa name font and case and seemed to position the company as an entry level model. Personally I don't know how good these are but I do have a hard time with this style falling out of my ears.