Lobster Sports &ndash; Elite One Tennis Ball Machine &ndash; Battery Operated &ndash; Lightweight &ndash; Full-Featured Tennis Ball Hopper &ndash; 4- to 8-Hour Battery Life &ndash; 60-Degree Lobs &ndash; Optional Accessories ADVANCED FEATURES AT AN AFFORDABLE PRICE: The Lobster Sports elite one tennis ball machine is packed with features and built for durability and ease-of-use at an affordable price. CORNER-TO-CORNER FULL SWEEP: This tennis ball machine features a full corner-to-corner random horizontal oscillation that will challenge a wide range of players, from beginner to more advanced. FOUR TO EIGHT HOURS OF BATTERY LIFE: Lobster Sports has designed the elite one with a long-lasting, high-capacity battery. A four- to eight-hour battery helps ensure plenty of court time between recharges. LIGHTWEIGHT AND EASY TO TRANSPORT: Although this ball machine is built to last, its incredibly lightweight. Its 42-pound ergonomic design and oversized wheels allow for easy transportation. EASY TO USE FEATURES: Enjoy playing against advanced features such as up-to-60-degree lobs to practice your overheads  an option not available on any other ball machine.