I have recently bought a new Nokia 5233 phone and this phone was supplied with the charger and normal headset for having conversation. The headset was not made for listening music on the phone. So i purchased a new brand headphone for the phone to listen music with great sound quality and volume. The problem is that when i play music on the phone a lagging sound comes in the headphone and it is really disturbing me. So please help me to know it this the problem with the phone or the head phone.