Lobster Sports Elite Liberty is one of the most durable and easy working tennis ball machine for the clubs, camps, school and another place for playing tennis. This workhorse type model is a great combination of advanced features and reasonable price. This battery-operated machine is great for the intermediate of bargainers whose are seek of advanced control of ball movement. But surely those players will surely find it enough challenging and can improve their game after practicing with it. So having a more advanced and effective tennis playing there is no companion of Lobster Sports Elite Liberty.