Apple iPhone 4 16GB !!1 month old!! ?

I am selling my iPhone 4 16gb only 1 month old which is in like new condition and unlocked to all networks which was done via apple.Reason for sale is because I have upgraded to an iPhone 4s.The phone comes complete with everything in the box and ready to go along with 11 months warranty remaining.I am looking for 350 but open to offers so please give me a text on 07788127070