There is humming on Sony Ericsson Bluetooth HBH- IS800 head phone

Hi Christ, 

I could say that the major problem is the bluetooth itself. Try to do this first prior on concluding that you need to change your bluetooth. Try to borrow to some of your friends who has the same brand and of blue tooth head phone and if that would work best on your cell phone then definitely you needed to change a new head phone. Also, if you do not want to buy a new one then better seek for an advise of those who are expert in repairing head phones.

Hope this could help.

- Asis