I have never had any problems with these ear buds. They just fit in the perfect place in my ears. I do not have to worry about them going in to far and damaging anything. The sound quality is amazing. For example, in a crowded room I can put them in and not hear anything around me. Sometimes I forget the ear buds are in because they are so comfortable. I love using this product and recommend them for anyone who wants comfortable, affordable, quality ear buds. Durability I have had these ear buds for 3 years and they still work like new.