Sennheiser HD 660 S

Weight: 260 g
Design: Full size
Description: Design: full-size, device type: wired headphones, design features: detachable cable, plug connector: jack 6.3 mm, acoustic design type: open
Additional Information: 2 cables included 6.35 mm / 4.4 mm Pentaconn; Cable connection: bilateral; Gold-plated connectors: yes
Plug connector: jack 6.3 mm
Harmonic coefficient: 0.04 %
Impedance: 150 ohm
Sensitivity: 104 dB
Included: Adapter 6.3 mm
Length of cable: 3m
Design features: Detachable cable
Device type: Wired headphones
Mount type: Headband
Max power: 500 mW
Maximum playback frequency: 41500 Hz
Minimum repeatable frequency: 9 Hz
Technology: Dynamic
Type of acoustic design: Open
Sensitivity options: DB/V
Number of drivers: 1