Samsung Galaxy s3 sIII Marble White 16GB Unlocked New *

Hi there, I have just upgraded by phone to the newest Samsung Galaxy s3 in white as my son advised me its worth the most. Ill be honest i dont know much about the phone as just upgraded to sell it. Looking around it sells for about 300 and it is brand new just taken the front sticker off to check for any marks. Its in mint condition. Any questions, please ask. Thanks, Peter