The buzzing that you mentioned...could you describe further what you are experiencing. Is it real loud, or like an electrical buzz or just something that is minor but bothersome? The only complaint I have with the X2 is my earpiece is just a bit muffled and had several people try it, and it didn't bother them. Everybody tells me that they hear everything very clear and loud when I talk to them. so it is only the earpiece. Regarding my muffled sound, I have honestly never heard any smartphone that didn't have something minor or major wrong with the voice quality. Perhaps, it has just been my own experience or a reality. I was considering taking mine back for that reason, and have to decide by tomorrow. I just love the phone and suppose if it came down to it some earbuds or bluetooth might work okay.