I have bought the Sony Ericsson xperia mini pro recently and its function are very good! One thing I have noticed that it makes electrostatic noise not only while it is active but only also when I am not doing anything and phone is kept steady! I can also record this noise while recording a video! Why am I getting this noise always? While I have sent my phone to service center, you can check your mobile by starting a camera and taking it closer to your ear!