Can you hear a pin drop?

Earplugs are the most popular type of hearing protection. They come in many forms, but those made of yellow expandable foam that conforms to the ear canal are most familiar to us. To be effective, they must be installed properly, which means inserting them well into the ear canal to seal it entirely. (Photos by Tech. Sgt. Matthew Hannen)

PHOTO BY: Tech. Sgt. Matthew Hannen
VIRIN: 110107-F-0000T-001.JPG
Additional Details

No camera details available.


Read More

This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit. Further, any commercial or non-commercial use of this photograph or any other DoD image must be made in compliance with guidance found at, which pertains to intellectual property restrictions (e.g., copyright and trademark, including the use of official emblems, insignia, names and slogans), warnings regarding use of images of identifiable personnel, appearance of endorsement, and related matters.