Motorola V220 Mobile Phone Question

Does anyone own a Motorola V220 Mobile Phone or know how I can fix this problem ....

I just bought the phone today and it has a high pitched tone ( faint, but audible) in the background when you flip open the phone and put the headset to your ear, has anyone else experienced this problem and does anyone know how to fix it?

i dont have that phone but if you take it back to the shop you bought it from they should be able to fix the problem.