... (different conbinations of ball speed,fixed point,flat stroke, horizontal, vertical, lob, top spin, back spin, Wide- ... can be fully random adjusted,which makes the machine more human oriented.Ball speed : 30-150 ... feed frequency ,work/pause, fixed point/flat stroke, horizontal/vertical, lob,random, top spin, back spin, forehand ... : charger, Colour:golden,silverWeight:59KGSize:main machine: 79*54*73(cm)