These are items from my husband's hobby (audio equipment) that came out during the year-end cleaning. Apparently, they're leftovers from when he bought a bunch of them in Akihabara a few years ago because they were cheap. My husband says, "They produce a flat sound with a strong presence." Brand new, unused, and unopened. For those who are interested... Please ask any questions you may have before purchasing. I hope we have a good connection...