An earphone specialty store!
E☆earphone Akihabara store specializes in audio devices and sells more than 4,000 earphones and headsets including used ones on the 7th and 8th floor. Including earpieces, about 24,000 items are available. One of the great stores to look for audio devices.
4-6-7 Sotokanda, Chiyoda City, Tokyo
(4 minutes walk from “Akihabara sta.”)