Cord Length: 9.84 ft (3m) Headphone Frequency Response: 15Hz-25KHz Headphone Input Impedance: 32 ohm Headphone Sensitivity: 98 dB +/- 4dB Microphone Impedance: Low Microphone Frequency Response: 60Hz-10KHz Microphone Sensitivity: -57dB +/- 4dB Features: Superb Sound Quality - Precise direction, Distance judgment. Durable, and Reliable Construction - Avoid speakers and/or mic malfunction. Extreme Comfortable - Supporting long, extended play and training.