ANYWHERE WITH REALLY LOUD SOUND, OR LOWER BACKGROUND NOISE!dBud is designed to reduce harmful noise levels down to safe levels, and at the same time have a minimal impact on the sound experience. And with the volume slider, you can easily switch between two levels of noise-reduction without having to take the plugs out of your ears.LOUDMUSIC events: For DJs, musicians and party animals at concerts, festivals, dancefloors. SPORT events: At football stadiums and motor sports venues. MANUFACTURING, PRODUCTION & CONSTRUCTION: Hearing protection while clearly hearing what is going on around you: Alarms, communicating with staff, awareness of vehicles and equipment. CHILD CARE & SCHOOLS: Hearing protection and still easy communication with children, parents and colleagues.BACKGROUND NOISEOFFICE WORKERS & STUDENTS COMMUTERS & TRAVELLERS on buses, trains, planes. Helpful for people with HYPERSENSITIVITY, MIGRAINE, AUTISM AND MISPHONIA