[Safe] Our arc plasma speaker has circuit protection settings. When connected to BT to play music, the input device will not be damaged. And the arc can be touched, it will not harm you. It can be used to generate high voltage thunderstrike for various scientific experiments.

[Two Modes] There are two modes of long arc and BT music. In the long arc mode, the arc is bigger and cooler. In BT mode, download square wave music. You can connect your phone to play music, and the arc will follow the music. Just simply toggle the switch close to the knob to switch modes.

[Gift Option] BT music coil also includes a host, a discharge pin, two small LED ambient lights and a dedicated power supply, you can give it as a gift to your family, friends and experience the unique attraction of electric arc in the palm of your hand.

[Small And Portable] The BT music coil is so small that it won't take up much space when placed on a desk or bookshelf. You can also easily put it in your backpack and take it to the office or school. It can be used for power transmission, lighting and insulator withstand voltage test.

[Support DIY Shape] Practical scientific transmission desktop toy that produces beautiful arcs, you can DIY any shape you like with wire, then fix it on the discharge pin, turn on the power and you get a shiny pattern, very interesting.