I did not have very high expectations for these earphones when I ordered them. I was used to listening to my Sennheiser ER6i's and although they were rated fairly well for the price, I found them to be lacking in depth. The mids and trebles are very good, but the bass was just not satisfying to me. When I listened to the Phonak PFE 022's for the first time I was very glad. For the price these earphones certainly deliver on clarity and have a much more base and a fuller sound than my ER6i's. These earphones are not base heavy. They have just the right amount of base IMHO. They definitely put a smile on my face. I was torn at first between the Shure SE215's and the Phonak's. I ordered the Phonak's based on other reviews I read and due to the fact they were less expensive than the Shures. I don't regret my purchase. The Mic works fine and I'm listening to more music on my iphone than ever before. These earphones are comfortable to wear for hours while I work from home. They also block out enough background noise to wear while mowing the lawn.