Headphone Driver: 1.6-Inch (40 mm), Frequency response: 20Hz-20KHz, Impedance: 32 Ohms, Sensitivity: 90dB SPL/mW
Microphone Pickup pattern: Cardioid (Unidirectional), Type: Pressure Gradient Electret Condenser, Frequency response: 50-20KHz, Sensitivity: -40dBV/Pa re: 0dB = 1 Pa, 1KHz
Dolby 7.1 Surround Sound, Seven discrete audio channels, SYSTEM REQUIREMENTS:Windows Vista, Windows 7, or Windows 8USB port
Low-frequency effects (LFE) channel, Rapid-burst transmission
Agile frequency, Noise-cancelling mic
Rotate-to-mute mic, Battery: Up to 10 hours per charge