With growing interests in electronic hearing protection, E.A.R. developed this line of small, discreet earplugs that fit comfortably into the ear with the use of various sized patent wax-guard tips. This decision benefits the consumer by virtually eliminating the possible hassle of remaking custom units due to weight changes or other anatomical changes in the ear over the years. It also allows our clients to share these units with another person by simply replacing the wax-guard tips. This reason alone helps law enforcement, instructors, military personal and shooting enthusiasts assign these units to other people without issues of fitting and adequate hearing protection worn in the field.