【Mobile App Control】: Intelligent APP, freely adjust the frequency, speed, rotation, depth, random modes and others that suit you, increase the difficulty of the challenge. 【Durable Ball Machine】: There is nothing worse than dragging a non-operating ball machine to your local waste dump, so be sure to feel the outside of the equipment itself 【Service:We attach great importance to our customers' shopping experience. If you have any questions, please feel free to contact us, we will reply you as soon as possible within 24 hours 【Large Ball Capacity】: with retractable pull rod, ball loading capacity: 80 balls, serving frequency: 1.8 seconds-8.8 seconds, (This product is only suitable for pickleball). 【Multifunctional Ball Machine】: 20 gears for vertical adjustment/30 gears for horizontal angle adjustment/different depth of ball functions can be set