The Elite Liberty is the latest addition to the highly successful Elite Series line of portable tennis ball machines from Lobster Sports. The Elite Liberty has been developed to meet the needs of beginners to intermediate players who seek advanced control of both ball speeds and ball spins at a price not previously available. The 2 hour battery life allows you to get a whole hitting session under your belt. The ball speed can be adjusted from anywhere between 20-80 MPH, and you can change the rate the balls are fed between 2-10 seconds. The height of the trajectory can be changed to practice groundstrokes, volleys, and lobs. Also random horizontal oscillation and top or back spin comes standard on this machine. The capacity is 150 balls, so you can hit without having to constantly refill the hopper. Features: Ball Speed: 20-80 mph Spin: Heavy Top and Back Elevation: Manual Hand Crank Battery Life: 2 hours Ball Feed Rate: 2-10 seconds Random Horizontal Oscillation Groundstrokes to Lobs 150 Ball Capacity Optional Accessories Available: Remote Control: Elite 2-function Wireless remote control 1-Amp Fast Charger 3-Amp Premium Fast Charger External AC Power Supply External Battery Pack Storage Cover Warranty Policy & Coverage: Ball Machines (not including battery & server wheels).... 2 years Battery & Server Wheels....6 months Accessories....1 year Parts (purchased separately)....1 year Discover the difference between Lobster Elite Tennis Ball Machine Models. Lobster Tennis Equipment lobeliteliberty