The Sports Tutor Tennis Tower ball machine was designed with the home court owner in mind. For starters, its intuitive control panel design means you don't even need to read the instruction manual if you really don't want to. The Competitor Classic does not include spin control but does include all other Base Model features. FEATURES: - Speed ranges from 10 MPH to 85 MPH. - Spin is adjustable from heavy underspin, to flat, to heavy topspin (except Competitor Classic). - Ball Feed (interval) control adjusts the time between shots from 1-1/2 to 8 seconds. - Trajectory is adjustable between groundstroke and lob. - Random oscillator. - All-in-one control panel. - 225 ball capacity. - The Tennis Tower displays the elevation setting right on the control panel. - A simple 10-segment display shows the elevation setting so you can set it to your favorite spot before firing any balls. - Comes with a protective all-weather cover. SPECIFICATIONS: Ball capacity.....................225 Balls Trajectories......................Groundstroke to Lob Max. Ball ejection speed....85 MPH Ball feed rate....................1 1/2 to 8 seconds Spin Control.....................Topspin/Underspin Oscillator..........................Built-in Dimensions.......................44"H x 23"L x 22"W Weight..............................60 pounds Power...............................100 watts maximum REMOTE OPTIONS: (must be ordered at time of purchase) - Two-button wireless remote ($200) - Multi-Function Remote – Controls all functions on the control panel just like you were using the actual control panel. In fact, the layout of the buttons on the Multi-function remote is almost identical to the layout of the buttons on the machine’s control panel, so there is nothing new to learn. ($400) Tennis Tower ball machines are backed by a three year warranty covering both parts and labor (NOT including battery). Extended warranties available. Sports Tutor 3171