SONIC II EARPLUG 

Sonic II earplug

Product Code: PN-147 Price: Check Latest The best earplugs available for all your aviation venues. Regular earplugs typically attenuate the sound fairly evenly across the entire frequency spectrum, making for a muddy, dull, uninvolving sound. Obviously this is better than getting permanent hearing damage, but it's actually only the high frequency sounds that cause damage. The Sonic Sound Filters provide about 6dB of attenuation below 1kHz, and then ramp up to about 24dB at 8kHz. The effect is that sounds maintain much more of their original tonal balance than with ordinary earplugs and yet you still get very good protection from the damaging high-frequency noise. 1 pair with plastic carrying case Unique valve assembly protects hearing from impact sound Allows for normal conversation to be heard Soft, silicone rubber construction for comfort