urbanconcept
No need for external power supply, all interactive play is supported by patented technology of power generation components, providing a human-powered play experience.
Feature：No external high-voltage power supply, power generating through excercise；Output voltage less than 36V, safe and controllable；The bubble liquid is stored at the bottom of the equipment, which is extracted by the internal pump and transferred to the top；The internal fan and impeller rotate to blow out the bubble liquid and form bubbles；Bubble liquid circulation device is set inside the equipment to ensure the durability of the bubble liquid.
https://www.interactiveplay.cn/bubble-machine.html
