This is a used 2012 Macbook Air, and it comes with a new charger and battery installed. This unit has been updated to MacOS 10.15.7 (the maximum for this model), and has been wiped and set back to the MacOS setup screen.
While it is an older model, it still performs very well for its age and would make an excellent laptop for basic web browsing or a child's laptop for school and homework with the expected conveniences of MacOS.