The Franklin Proshot Pickleballer Machine offers portable, easy-to-use training for improved shots. With 15 ball capacity (balls not included), it stands 24.5" tall x 9" wide x 11" deep after assembly & can run on 4 D cell batteries (not included) or AC power adapter (included). Adjust the feeder wheels to launch balls with topspin, backspin, and side spin! Speed settings include "high" (27 MPH, approx.) or "low" & the machine serves balls every 8 secs. Firing speed & spin options help improve play, while the indicator light notifies you for your shot. Ideal for families & beginners, the Proshot Pickleballer comes with 90 day warranty & assembly instructions. AC adapter & ball type is specified for outdoor pickleballs.