Siabosi SS-V8-5 ball machine, sell for 7000HKD.
150 ball capacity, remote control, ball speed 30-150km,
Serves : flat; lob; topspin; underspin; horizontal and vertical mixed ball for player.
Another random programmed serving function, serve all kinds of above in court.
She can serve balls for two rolls of learners at baseline (narrow and wide distance apart).
Battery or AC supply functioning.
Battery can be used up to 4-6 hours.