High-Performance Studio Headphones Ultra-wide frequency response High-definition bass and super-transparent highs Ultra-wide dynamic range High-efficiency cobalt capsule Single-sided cord with oxygen-free copper wires Optimized oval-shaped ear cups Ultra-rugged headband construction Technical data Capsule diameter: 40 mm Frequency response: 20 Hz - 20 kHz Max. power handling: 100 mW Impedance: 64 Ohm Sensitivity: 110 dB @ 1 kHz Cord length: 2.0 m Connector: TRS stereo jack