RAN-3000Q headsets that deliver enhanced noise reduction, superior voice with noise cancellation, while providing comfort and stability. Noise cancelling boom microphone gives a high perception of speech, by filtering out background noise;Padded headband with adjustable pressure control and soft ear cushions give high comfort.The headsets are manufactured in modules so every component can be easily replaced. With mini XLR quick disconnect jack,Requires XLR QD Quick Disconnect Cable or QDC Quick Disconnect Cable with PTT (sold separately)