I got these at thrift store and love them! They are Panasonic SL-SX400 CDP and Sennheiser MX400 earphones, both in great condition. I bet most of you audio enthusiasts have tried cdp back in the days, but if you haven't, they sound very good. Most of them including mine has powerful headphone amps, and I could even rock my hd560s with 50% volume. Of course they are not hi-fi level of sound but it is very enjoyable. If you never experienced them, I highly recommend to try it out.