I'm selling my collection of clip-on headphones. This is a pair of JVC HP-AL600-B which I bought second hand in Japan a few years ago. They are discontinued since a few years back.
The pleather on the side of one of the pads is starting to break. I think pads for Sennheiser PX200 or AKG K26P/K414P can be used.

Impedance: 32 Ohm
Sensitivity: 107dB
Frequency response: 10Hz-25KHz
Cable: 80cm, straight 3.5mm gold-plated plug (no extension cord included)