Musical tesla coil science experiment tool for experiment room Description: Type: Music coil, tactile lightning in hand, tools for science experiments. Versatile: After the coil is turned on, it can be used to carry out various science experiments, such as wireless power transmission, wireless lighting. Built-in music design: Electric powered wireless transmission model can connect the phone, let the bows sing and play music Artificial Lightning: This coil can emit 10cm diameter lightning, the arcs can be touched at will, only slight feeling and temperature, and it is a very nice collectible and gift. Application: The musical Tesla coil is suitable for beginners, experiments, curriculum design and so on, very interesting small science experiments. Size chart: 10.6cm x 1.6cm x 6.1cm / 4.17" x 0.63" x 2.40" The package includes: 1 Set Music Tesla Coils (EU Adapter) Note: 1. This is not a baby toy, take it away from children to avoid eating it. 2.