The power alley lite-ball pitching machine from heater sports™ pitches fastballs, grounders, and pop-fly's, so you can practice any time you want! the powerful a/c motor throws up to 60 mph, and the fully enclosed wheel offers optimal safety. The power alley plugs into any standard wall outlet for convenience. you can't afford a big-league pitcher to come to your backyard every day, but the Heater sports power alley lite-ball baseball pitching machine Is definitely the next best thing!.