United States Navy E-4/5/6 Sonar Technician Rating Badge
Criteria: Worn by Sonar Technicians (ST) with ranks from Petty Officer 3rd Class (E-4) to Petty Officer 1st Class (E-6). Sonar Technicians are responsible for the the Navy's underwater surveillance. They are trained in the maintenance and operation of sonar equipment and how to jam enemy sonar.
The badge is sold with all 3 chevrons below the rating for E-6, and can be tailored down to the other two chevrons.