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;Red / green LED lights placing on the butterfly, LED screen in the middle to display the score of both sides;Play the game by hand & foot tapping. https://www.interactiveplay.cn/butterfly-clapping-game.html