TUFF-LUV Dual Connectivity VH510 USB & 3.5MM Mono Call Centre Head Set – Black

TUFF-LUV Dual Connectivity VH510 USB & 3.5MM Mono Call Centre Head Set – Black 

Technical Specs
Impedance(microphone): 2.2K ohms
Impedance(receiver): 150 ohms
Sensitivity(microphone): -40 ± 3dB (0dB = 1V / Pa, at 1KHz)
Sensitivity(receiver): 100 ± 3dB
Frequency(headset): 100-6600HZ
2M cable
Dual connectivity 3.5mm and USB
volume control with Mute button

What’s in the box
x1 Headset