illumination, insulator voltage testing, sewage treating process, etc. And teachers can use it to demonstrate the principle of voltage boosting to students, high-frequency skin effect, etc. It is a perfect teaching tool to arouse students' interest in science, also can be a fine gift. Touchable Artificial Arcs: It produces a palpable arc that, when touched by the hand, provides a sensation similar to a soothing hand massage at a SPA. Two rotary knobs design for you to adjust the the size of the arc and the working frequency. Wireless Transmission: The Tesla coil can generate a high frequency and high-pressure electromagnetic field so that the lights containing conductive gases can be illuminated by the electromagnetic field. Includes fluorescent light, incandescent light, neon light, and some rare gas-glass tubes. Ignition Mode: With ignition mode, the arc is essentially a high-temperature plasma that can ignite flammable materials when the device releases arcs at a high frequency. Experimentation Teaching Aid: It is a perfect teaching tool to spark students' interest of science, suitable for various scientific experiments such as wireless power transmission, wireless light illumination, insulator voltage testing, sewage treating process, etc. And teachers can use it to demonstrate the principle of voltage boosting to students, high-frequency skin effect, etc. Specifications: Name: Music Tesla Coil Material: acrylic + printed circuit board Music transmission: BT input Input voltage: 48V Input power: 60W Arc length: 0-100mm Arc frequency: 5-50Hz Item size: 30 * 84 * 84mm / 1.18 * 3.31 * 3.31in Package size: 200 * 110 * 140mm / 7.87 * 4.33 * 5.51in Package weight: 478g / 1.05lb Packing List: 1 * Music Tesla Coil 1 * Power Source 1 * Tweezer 2 * LED Light Beads