Etymotic Research ER20XS High-Fidelity Earplugs (Universal Fit)

hey guys David here and this is an earplug and this is an air plug but whereas a traditional air plug is designed to help silence the world around you this is an air plug for those who still want to enjoy the fidelity of music at concerts and clubs but just at a lower volume let me quickly explain traditional ear plugs are elect basically sticking your finger in your ear highly effective at reducing overall volume but greatly reduces mids and highs so you end up hearing a muffled unclear tones and vocals high fidelity ear plugs on the other hand also reduce overall volume but try to reduce sound levels evenly across the entire frequency range so you end up with a richer sound for my testing of the automatic er twenty excesses they do a great job at lowering the volume from a typical concert level that can be damaging over times to your eardrums to more bearable level and their advantage