Automatic serve machine

Table tennis can promote the development of children's upper limb muscles, joints and ligaments
Enhance children's keen observation, imagination, judgment and patience
In the fun brought by sports, enhance the child's vigor, exercise patience, make good use of his head to analyze and observe, Zeng Qian's body flexibility and coordination, and develop from sports!
At the same time, increase feelings and tacit understanding, close the relationship between parents and children, exercise the thinking ability of the game player, and make the whole sport full of fun and challenge!
Ball drop angle: Serve at a fixed point, not serve
Serve frequency: about 15 serve per minute, serve
The ball machine serves every 4-6 seconds--ball
Power supply: four five batteries