13" Black Macbook GREAT CONDITION in Allston, MA

I've had this laptop for two years and it's been a real pleasure. For the sake of full disclosure, the battery seems to be loosing its charge. I usually get about 2-2.5 hours out of it rather than the 3-4 hour charge I got from it when it, new. Other than this, I've been more than satisfied-- my friends always tease that I'm a bit OCD about maintaining the sparkle of my laptop. No oil stains on the keys, trackpad, screen, or body. My reason for selling is that I got a new computer from work and have no need for this one anymore.
13.1" screen
Processor