... ,battery bumper car,electric battery car 1)safety,smooth,cheap,good quality 2)usage:park,kindergarten,clubs electric-net bumper car,amusement machine ... ,dodgems,bumper equipment,electric power cart,battery bumper car,bumper car,amusement car,electric battery carThe ZY-B64 series is the ... control box:9000/set, one set could used for 10 sets of cars.1. Feature:self-control,adjust speed2. high quality ...