DIY Plasma Speaker Kit: A compact coil based electronic kit that lets you build your own speaker system. Made from practical materials, it provides a hands on experience for electronics enthusiasts. Voltage Output: The coil operates on the principle of resonance, invented in 1891 by Serbian scientist NikolTesla. It produces ultra voltage with low current frequency AC power. It can be used for electrical lighting, fluorescence spectroscopy, X ray, electrotherapy, and radio energy transmission when configured accordingly. Multiple Functions: The back end of the coil produces an arc, which can also be used for ignition. When energized, the fluorescent lamp connected to the coil lights up. The coil also functions as a speaker by exciting the air to create sound, allowing playback from mobile phones, MP3 players, and computers. Specification: The PCB size measures approximately 0mm x 8.0mm. The power input requirement is DC 15 24v, with a current of 2A. It features a DC5.5 interface/pin and an audio input of a 3.5mm socket, enabling easy connection to various audio devices.