I'm not sure on the specs but its a 2010 MacBook Pro A1278 he told me, he wants 450 for it in mint condition, he has a charger but it just broke, but the laptop still has 88% battery he told me, and he has the original box but its in storage, right now so he is going to go look for the box in storage, so what should I look for when I go look at it? He tried to give me the serial number but I it came up invalid, he says he will check it again when he gets home, but he only wants 450 for it because he needs money to get from here in New York to Michigan to go back home, so what should I look for when I go look at it?