They are by far the best phone speakers you have will ever hear, but key phrase here is "phone speakers." They are small speakers and as such one should expect that the 40Hz-100Hz range is lacking. Though, they do have excellent clarity, and volume. The slide out speaker, imho is totally worth it. When wanting to show friends a video or play a song for them, holding the phone awkwardly to direct the sound is not required and you can hear it. If any have owned an iPhone (I did prior to this) you probably understand what I mean. With the speakers being on the bottom of the phone, because that makes horrible sense.