Features: The flight distance can be changed by adjusting the knob Small size, light weight, long throw range and AC/battery operation Can be used in court, home, house, garage, backyard, driveway, garden or park Specification: Product Name: Tennis Throwing Machine Material: Polypropylene Size: 32*18*50CM Power supply: AC-100~200V*AC adapter or 8 single alkaline dry batteries Weight: 3kg Corresponding ball: baseball, tennis ball Launch interval: about 5 seconds, the number of continuous balls: 6~7 balls Package: Tennis Throwing Machine×1 Notice: Due to lighting and display reasons, there may be color differences between the real object and the photo, please refer to the actual object The above data is for reference only, the size is measured manually, there may be errors, please refer to the actual product, thank you