HIGH FREQUENCY NOISE FILTER EARPLUG
The Hocks Noise Braker® is an acoustic filter that adjusts all incoming sound to appropriate speech levels. While most hearing protection seals off the ear, effectively blocking any sound from entering, this high frequency noise filter lets air and sound through in a safe, effective way.
SONIC VALVE EARPLUG
The Sonic Valve earplug provides comfortable protection for loud environments and helps reduce “noise hangover” from loud music. Unlike earmuffs or solid earplugs, the Sonic Valve’s open fit reduces high level noises while enabling you to hear the subtle sounds of a conversation.