The DK Sports elite one battery-operated tennis ball machine is loaded with unique features to help everyone from students to advanced players who are passionate about improving their game The elite one will help perfect groundstrokes, lobs, returns, reaction time, and overall fitness – all at an affordable price. The easy-to-use elite one has elements that are often found in more expensive tennis ball machine models. Users can master forehands and backhands with the full corner-to-corner random oscillation, practice overheads with up to 60-degree lobs – a feature not available on any other competing ball machine, improve reaction time with balls speeds of up to 80 mph, and perfect the ability to return whatever comes their way with the heavy topspin or backspin settings. The elite’s sleek hopper holds 150 balls and the long-lasting, high-capacity, rechargeable battery will supply 4 to 8 hours of court time. Included with the machine is Lobster’s standard dual-voltage charger (100-240v) which has built-in trickle technology to ensure your battery will never overcharge. The charge time ranges from 12 - 24 hours depending on the battery level. Additional power supply options including ac/dc are available from Lobster Sports. Designed for portability, the elite is outfitted with 8 inch, all-terrain wheels to easily travel over any surface and onto the court. The 42 pound, compact design with inverting hopper and folding metal handle makes it easy to transport in any vehicle as well as to store when not in use. Upright the machine measures 29 x 43 x 15. 5 inches. When folded down it is 29 x 21 x 15. 5 inches. Optional accessories including remote control, premium fast charger, external battery pack for extended playtime and storage cover are available from Lobster Sports. Lobster Sports has been making tennis ball machines since 1971 and stands by their products, which are protected by a 2-Year . Engineered to last for many years and to withstand frequent use, Lobster ball machines, just like a car, can last for decades if properly maintained. The Lobster Sports elite ball machine can be a tennis player’s life-long training partner to help significantly improve their game - making it an exceptional value. A 5% restocking fee will be charged for any returned products.