This tennis ball machine features electronic speed control that is adjustable from 15 to 95 miles per hour to work on your hand and foot coordination and to learn to react without thinking; electronic spin control delivers topspin and backspin action; manual elevation can be adjusted from dri...

    This is a great model to get a wonderful workout and improve your game. The Silent Partner Sports model features; electronic speed control which can be adjusted from 15 to 95 miles per hour to accommodate the beginner and advanced player alike; electronic spin control that can be switched fro...

    This model features, electronic speed control with a range of 15 to 95 miles per hour will accommodate the beginning player and the seasoned player alike; electronic spin control with topspin and backspin; electronic feed rate control to stop the ball delivery or shoot one ball every second; ...