I. Law Enforcement
Target shooting
Surveillance
Communication / 2-way radio

II. Sports
Shooting / hunting
Motorcyclists
Race car drivers
Swim / surf

III.  Industrial
Construction
Machinery

IV.  Music
Music monitors
ER-15
ER-25

V. Communication Technologies
Cell phones
Walkman
2-way radios
Surveillance
Ear monitors

VI. Electronic Shooters Protection

VII. Tinnitus