Equipped with all of the standard elite one battery-operated features, the Lobster elite two's advanced triple oscillation takes match play to the next level at a minimal cost increase over the elite one. While almost all battery powered tennis ball machines sweep randomly left to right horizontally, the Lobster elite two tennis ball launcher also oscillates vertically, giving you short and deep shots in a random pattern to provide a better physical workout. Or, choose your shot placement vertically only and horizontally only.