Drive Unit (diam. in mm): 40
Impedance (ohm/1kHz): 56
Sensitivity (dB/mW): 100
Max. Input (mW): 200
Frequency Response (Hz-kHz): 8-22
Cord Length (ft./m): 6.6/2.0
Plug Adaptor (6.3mm in diam.): Yes
Plug Type: Gold
Magnet Type: Neodymium
Travel-fold Design: Yes
Carrying Case: Yes
Reduces Background Noise: Yes
Detachable Cord: Yes
Noise Canceling: Yes
Plug Adaptor for Airplanes: Yes
Weight: .59 lbs