This low-cost, high-value package contains 12 Standard Replacement Foam Tips designed specifically for Clarity Aloft aviation headsets. Each Comply Canal Tip has been designed to slowly expand following placement in the outer ear canal. The result is a snug, extremely comfortable fit that provides a Noise Reduction Rating (NRR) of 29.5 decibels while also delivering crystal clear audio from the headset's transducer to the user's ear. Each disposable earpiece is good for 5 to 7 flights and can be machine washed in a shirt pocket to extend their lifespan. A revolutionary, lightweight hearing protection solution from the experts at Clarity Aloft.