iPHONE 3GS 16GB BLACK VODAFONE +

I HAVE FOR SALE MY IPHONE 3GS WHICH IS IN VERY GOOD CONDITION. ONLY REASON FOR SELLING IS BECAUSE I HAVE CHANGED TO A NEW WINDOWS MOBILE PHONE. THE PHONE COMES WITH A BOX AND CHARGER AND USB CABLE. THE PHONE IS CURRENTLY ON VODAFONE NETWORK AND I ASSUME IT IS LOCKED TO VODAFONE SINCE NEVER TRIED WITH ANOTHER SIM SINCE ONLY EVER BEEN WITH VODAFONE.