Sennheiser HD 660 S Wired Over-the-Ear Headphones

Very good condition

Couple of minor scratches on the grille

Fully functional

Features

Reference-Class, Dynamic Wired Headphones

For Stationary & Mobile High-Res Players

Very Low Harmonic Distortion

Tolerances for ±1 dB Accuracy

10 Hz to 41 kHz Frequency Response

Detachable Para-Aramid Cables

Includes 1/4" to 1/8" Adapter Plug

1/4" Stereo & 4.4mm Pentaconn Cables

Included

Sennheiser HD 660 S Open-Back Dynamic Headphones

Cable with 1/4" (6.35 mm) Plug

Cable with 0.17" (4.4 mm) Pentaconn Plug, Balanced

1/4" to 1/8" Adapter

Storage Box