The Slider Lite-Ball Pitching Machine from Heater Sports pitches fastballs, inside breaking balls, and outside breaking balls. The powerful A/C motor throws lite-balls at variable speeds up to 60 miles per hour. The Slider also includes an automatic ball feeder that holds 12 lite-balls. Just turn on the feeder and each ball is dropped into the Slider pitching machine every 9 seconds. Take batting practice without the need for another player. And with a simple swivel adjustment you can also hit fastballs and curve balls. Plug the Slider into any standard wall outlet or use it with the optional RollingPower battery pack for convenience. PowerAlley Home Batting Cage, the most affordable and revolutionary batting cage ever developed for improving your hitting at home.