Product Description Speaker Size: 50mm Sensitivity: 110+/-3db Frequency Range: 20Hz-20 KHz Microphone Impedance: 2.2kΩ Microphone Sensitivity: -38+/-3dB Working Current: Headset Jack: USB+3.5mm 4Pin Cable Length: 2.1M+/-0.15 BENGOO GM-7 Stereo Pro...