I have been a police officer for over 15 and have tried to use different types of earpieces and have never found one that was comfortable. I recently was working a motorcycle show and met Mark Hood, he explained to me how they work and how comfortable they are. I decided to give it a try and could not be any happier. This by far is the best earpiece I have used. Very comfortable, fits like a glove and blocks out a lot distracting noises. I would highly recommend purchasing one from Inearz.