Description: Music tesla coil, touchable lightnings in the palm, scientific experiment tools. After the tesla coil is powered up, generate high temperature and high pressure plasma, you can use it to do various scientific experiments, such as wireless power transmission, wireless lighting. It can be connected mobile phone bluetooth, let arc sing and play music. This tesla coil can emit 10cm lightnings, the arc can be touched at will, only a slight sensation and temperature, you don't have to worry, it can amaze everyone and is a very cool collectible and gift. Suitable for beginner, student experiments, curriculum design and so on, very interesting small scientific experiments. Specification: Material: Plastic Power Supply Voltage: 110-240VAC, 50/60Hz Power: 0-120W Lightnings Length: 0-10cm (adjustable by Knob) Plug: US Size Chart: 106x106x61mm/4.17x4.17x2.40inch Package Includes: 1x Music Tesla Coil Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!