Beyerdynamic DT 660 EDITION Closed Dynamic Headphone
Transmission type:Wired
Headphone design (operating principle):Closed
Headphone impedance :32 ohms
Headphone frequency response :5 - 32,000 Hz
Nominal sound pressure level :97 dB
Construction Sound coupling to the ear.:Circumaural (around the ear)
Cable & plug:Straight connecting cable with mini-jack plug (3.5 mm)& ?? adapter (6.35 mm)