... tennis ball training machine 2)free remote control and battery 3)one year replacement. 4)Internal ... the machine more human oriented.l 2.Remote and panel double control, LCD display.l 3.11 functions ... vertical, lob,random, top spin, back spin, forehand and backhand middle-line.l 4.Double power, AC110V-240V, ... suitcase. Put in the suitcase of the car and carry very conveniently.l 8.Ball capacity :260 ...