DEMO MACHINE. WITH FULL WARRANTY
Search "Best Tennis Ball Machine" on Youtube, #1 Ranked Ball Machine
See Customer Reviews from    https://www.amazon.com/product-reviews/B016UYMFS4
http://www.spinshotsports.com/Spinshot-player-us.html
For More Product Details
Reference Video at https://www.youtube.com/watch?v=pHU4YghXkJM
See video at https://youtu.be/VrKf0DFZC54
for using the control panel
You Can Program the Machine to Make your Own Drills
Use Phone to Program each Shot for Speed, Spin, Height, Angle and Feed Rate
No additional Cost for Phone Remote Upgrade
Setting can be stored on the Ball Machine for future use
Any Type of Oscillation Can be Easily Made By the Player Model.
Service Centre available from US (NY and CA)
Tennis Ball Machine Brand Not Made of Plastics
Extendable Towing Wheel for Easy Transport
Ball Ejection Speed: 10kmph to 110kmph
Ball Feeding Rate: 2 Second to 10 Second
Ball Spin: Adjustable Top and Back Spin
Ball Trajectories: Adjustable from Ground stroke to lob angel
Ball Speed, Spin, Feed-Rate, Height All Savable on Phone Remote App as Drill
Different Drills can be Programmed into Machine for a Easy reuse
Weight is only 20kg for Battery Model, 17kg for AC module. Very Portable
Ball Capacity: 120 balls
Dimensions: 50cmH x 45cmL x 30cmW
Power: Battery Provided with with machine.Optional AC module Available at
99.
Smart Battery Charger Included.
Smart Power Cage Design Make Easy Power Option Change or Battery Replacement.
Playing Time: 2 to 3 Hours Typical for In-Cage Battery, Infinite Time for AC module Option
Remote: iPhone or Androd version Phone Remote Option Supported. 
2 Year Warranty be with Machine