Newgy Robo-Pong 2040

It's an easy to use robot, with 3 functions: speed, ball frequency and oscilator speed.
It can send the balls to 6 different locations, ajustable but with one type of spin at the time.
Comes with a net collector.
It's fast enough and can give you a good amount of balls per minute.
Sometimes it jams (about every 150-200 balls) with 40 mm balls.
The 40+ balls tht I've tried went random direction.
You can train blocks, drives, topspin, service returns and loops.
Best suited to learning the basic stokes or to train at home. It's also easy and quick to set it up