Does not include the machine. 
The optional External Battery Pack attaches to the machine through the charge jack to provide 4-6 hours of extra playing time.  Weighs 12 pounds.
Note: The External Battery Pack works with battery-operated models only.
OnCourt OffCourt is the exclusive manufacturer's representative of the Pickleball Tutor in the U.S. It is made by Sports Tutor, the leading tennis ball machine manufacturer in the world.