Meet the Tennibot: a convenient robot that picks up tennis balls, so you don’t have to. It has various modes and lets you control its speed and position on the court. Tennibot uses sensors to get the job done autonomously. You can set it up through your smartphone.
Tennibot keeps track of the number of balls you have hit and how frequently you practice. The app also lets you choose where you want the robot to pick up balls.[where to find it]