Grey I phone 6s plus 16 gb att - $300 - (South Fulton, TN)

My I phone is in great condition. It has been in a case since I have had it. Is works very good and I did what's my phone worth and it's worth 355 but I want 300 or to trade. It comes with a case charger box and car charger. I'm just done with I phones. I do not have a pic of it just because I use it.