. Driver: 1.6 in (40 mm) Frequency response: 20 Hz-20 KHz Impedance: 32 Ohms Sensitivity: 90 dB SPL/mW Microphone Pickup pattern: Cardioid (Unidirectional) Type: Pressure Gradient Electret Condenser Frequency response: 50Hz-20KHz Sensitivity:-40dBV/Pa re: 0dB=1 Pa, 1KHz Test conditions: 3.0V, 1KHz Connection Type: Analog 4 poles 3.5mm plug Indicator Lights (LED): No LCD Display: No Headphone Type: Analog Stereo Headphones Corded or Wireless: Corded Driver size: 40 mm Headphone Sensitivity: Analog 4 poles 3.5mm plug Headphone Frequency Response:20hz-20khz Input Impedance: 32 ohms Sound Pressure Level (SPL Max): 90dB SPL/mw Microphone Type: Cardioid (Unidirectional) Microphone Frequency Response: 50hz-20khz Audio Controls: Volume control, Microphone mute Noise Canceling: No