Model Number: HMD30RR Key Specifications/Special Features: 24dB noise reduction, very high passive ambient noise attenuationSuitable for high frequency audiometry, independent for positioningExtra-soft, high-density foam ear seals, replaceable ear sealsSpring steel flake neckband and Hook-and-loop adjustable headband design, spring steel flake for constant pressure over long periods of useExclusive flex-boom articulating fulcrum, adjustable boom micPush-to-talk button, red/black/blue color for choicesClothcover for mic is included, it can prevent wind noises

Noise-cancelingdynamic microphone

5Pmini chassis XLR/male standard connector/plug

3.5mm monostandard audio port