Model Number: H2/10M Key Specifications/Special Features: 24dB noise reduction, very high passive ambient noise attenuationSuitable for high-frequency audiometry, independent of positioningExtra-soft, high-density foam ear seals, replaceable ear sealsPadded headband for increased comfort, adjustable headbandUnique band design, stainless steel wire for constant pressure over long periods of useSingle volume control knob3.5mm monostandard connector/plug