Faulty iPhone 4 Black 16 GB For Sale .

Hi. I would like to sell my "fully" working iPhone 4, Black, 16 GB+Headset and charging/data cable . It has only one annoying error, there is something wrong with its audio chip. You can listen to music, watch videos, make video calls, but when someone calls you and you try to answer, you can not hear the other person.... Back and front glass is intact. If you are interested, please contact me. Cheers!