Cougar Immersa Essential Gaming Headset Black
Specifications
Headphone 
Driver : 40mm
Max. Input Power : 20mW
Sensitivity at 1kHz : 103±3dB
Impedance at 1kHz : 32Ω±10%
Frequency Response : 20Hz - 20kHz
Headphones Jack : 3.5 mm Jack
Microphone : 
Driver : 9.7mm
Mic Type : Cardioid Noise Cancellation
Mic Sensitivity at 1kHz : -50dB±3%
Mic Frequency Response : 100Hz - 20kHz
Mic Impedance : 680Ω