The idea for this tennis robot was born after years of table tennis matches against each other and when they began studying in different parts built one brother a prototype robot to practice in secret.
A dozen prototypes later, has now launched Trainerbot on Kickstarter.
The project is seeking 80,000 dollars and if you want one you have to donate at least $ 329 excluding shipping.
With Trainerbot can, via an associated mobile app, create your own workouts so you can get better at the different tennis teams.
You can set each on the table the ball will land, how fast it will go and whether there should be any spin on the ball.
Bonus Cut below where people from Ars Technica and The Verge takes a closer look at this device.