Hearing protection today has numerous applications: at work, during leisure time, at night. Work protection regulations mandate the wearing of hearing protection in surroundings with a high noise level. Home improvers, hunters, motor sport enthusiasts or party-goers use protection earmolds for a worry-free time. Musicians combine hearing protection with the possibilities of in-ear-monitoring. Hearing protection opens up entirely new customer segments for the hearing aid acoustician – with a positive outcome.