Educational toy-Solar car Electronic kit Passed EN-71 Thousands of corcuits ... components.Thus,it is very easy and safe to set up a wide range of useful circuits within a very ... they are easy to follow and set up. Common circuits like those for lighting up an electric bulb,propelling a fan ... ,a buzzer,FM radio,or recorder can be set up and activated by magnet,touch,water,etc,within just two minutes. ...