... : ball speed, feed frequency ,work/pause, fixed point/flat stroke, horizontal/vertical, lob,random, top spin, back spin, forehand and backhand middle-line ... .l 4.Double power, AC110V-240V, DC12V available.l 5.Ball speed : 30-150 km ... suitcase. Put in the suitcase of the car and carry very conveniently.l 8.Ball capacity :260.l 9.Suitable for: Junior ...