SPINSHOT-PRO TENNIS BALL MACHINE * Tennis Ball Throwing Machines * Portable Training Partner Only Ball Machine not made of Plastic!! Designed to last,its 20KG design is easily transported even with the hopper full of tennis balls. The battery lasts over 2 hours so you are good to go Included is a 2 button remote. Battery charger is included .Actual Battery is shipped separately and not included in the ball machine box Oscillation: You warm up both forehand and backhand. Ball speed 10 kmph to 120 kmph. Feed rate 2-10 seconds. Power by battery. Warranty 1 year Since the Spinshot-Pro can move the ball side to side, even the most advanced players along with beginners will get a great workout