3M™ Peltor™ Pro Tac with built-in level-dependent function that amplifies weak ambient sounds and attenuates strong ones. High wearing comfort with spring steel headband and fluid-filled sealing cushions. Natural sound reproduction for optimal sense of direction. Reliable impulse noise isolation. 3-fold amplification of quiet sounds. Easy to use; buttons are easily accessible and logically arranged.
Comparison overview of 3M™ Peltor™ hearing protectors (PDF).