These are Sennheiser in-ear headphones purchased in 2012 from a Japanese shopping site. I loved using them back then, but I had a problem with the cable breaking, so I bought several as spares so I wouldn't be caught without them. As microphones have become standard, I don't use them as often as I used to, and I don't think I'll be able to use them all, so I'm putting them up for sale. I have three left, so I'm listing three of the same product. They do not have a microphone; they are headphones for listening only. I think they're extinct now, but they are the Y-type, where the right ear cable goes behind your neck (photo 5: my personal pair). Even if you take one earbud out, you can still hang it around your neck, which I personally think is more stable than the U-type. I'm still using one of the spares I bought back then, and it works perfectly fine. However, they were purchased a long time ago, so I would appreciate it if you could understand that.