Multifunctional flat panel BT music Tesla coil, has the function of wireless-transmission, can produces touchable electric arc, lights up lamp and plays music with high sound quality. With the Tesla coil you can create dazzling artificial lightnings, and can be used not only in games or art, but also for various scientific experiments such as wireless power transmission, wireless lightings, insulator voltage testing, sewage treatments, teachers using it to demonstrate the principle of voltage boosting to students, high frequency skin effect, etc. It is a perfect teaching tool to spark students' interest of science, also can be a fine gift. Note: The housing is made by FDM3D printing, there will be certain defects like small pits or some unsmoothed textures. We recommend using squarewavemusics. Specifications: Name: Tesla Coil Material: plastics+printed circuit board Package size: 150 * 150 * 50mm / 5.91 * 5.91 * 1.97in Package weight: 230g / 8.11ounce Packing List: 1 * Tesla Coil