Tennis Tossing Machine

Battery Or Plug In-The Tennis Machine can be powered with 4 Type D batteries(LR20/AM1) or plugged in(220V/110V).
Hold Enough Tennis Balls-The Tennis Serving Machine with multitracks can hold 30 tennis balls. No need to pick up the balls often.
Features-The throwing distance can be adjusted in 4 levels. Different balls have different throwing distances. The frequency is one ball every 4 seconds.
Wide Application-The Tennis Machine is suitable for almost all tennis balls.