Feature●Remote Control .Mobile App 15 kinds of programs.●Remote upgrade power-on self-checking .Abnormal Alarm Low battery protection.●Small and exquisite.Tennis Wizard.Unique design.Sharper aesthetic.Exquisite body●Forecourt speed adjustment.Backcourt speed adjustment.Fixed point speed adjustment.Fixed point frequency adjustment●Whole court random serves.Programming mode.Self-programming of droppointDescription