Excellent passive noise isolation.Closed-back architecture provides excellent
sound isolation.Speakers tilted to the ear's natural angle for clarity.
Carefully tested drivers for the best balance sound.Earshell buttons for
controlling music and calls.1.2 meter audio cable for when your battery runs
out.1 meter USB charging cable for recharging.Two built-in microphones for
improved call quality.Deluxe memory foam cushions for an ergonomic fit.
Frequency response: 7 - 23 500 HzImpedance: 16 OhmSensitivity: 107 dB