Technically fully functional, no operational issues. Some wear is visible in the photos.
Design type: over-ear
Connection type: wired, cable 3 m
Frequency range: 5 Hz - 35000 Hz
Impedance: 80Ω
Sound channel format - 2.0
Acoustic design type - closed-back
Minimum reproducible frequency - 5 Hz
Maximum reproducible frequency - 35000 Hz
Impedance (Ohms) - 80Ω
Sensitivity - 96 dB
Number of drivers per side - 1
Driver type - dynamic