Feature 1、Arc Generator Coil Toy: Beautiful appearance, high power, great arc effect, multiple functions, also a plasma speaker that uses arc as speaker to play various music. 2、Fine Craftsmanship: Utilizing the latest power devices and processes for a stable performance. Primary coil with original design, secondary coil with epoxy resin coating, more lasting. 3、Long Working Time: Improved coil design with premium components and modern materials for extended use, will not easily damaged. 4、Exquisite Appearance: Combining function with aesthetics, our arc generator music coil offers finely crafted designs for collectors to appreciate. 5、Versatile Functions: Incorporating plasma speaker, air lamp, ion windmill, ion wreath, and wireless power transfer experiment, offering a range of scientific and entertainment experiences. Item Type: Music Coil Material: Acrylic, Stainless Steel, PCB Arc Spark: Approx. 30mm / 1.18in Function: 1. Plasma Speaker: We added sound modulation circuit to this coil, which allows the arc to follow the music signal to produce amplitude changes, thereby emitting sound and becoming a plasma speaker. It can connect to various devices to play music via Bluetooth or sound cable, with great sound quality and volume. 3. Ion Windmill: The arc is a high temperature plasma that can heat the air, and the heated air flow generates thrust. Therefore, when the arc jets from both ends of the PCB windmill in opposite directions, it starts to rotate. 4. Ion Wreath: We use a thin elastic metal wire as the discharge end, and when the coil starts to work, the top sprays arc to generate thrust. Due to the instability of the thin wire, the arc will sway and rotate. If we start long exposure photo taking when the wire starts to sway, we will get a super cool picture. 5. Wireless Transmissing Experiment: The original intention of inventing coils was for wireless power transmissing. With this small coil, we can also explore wireless transmissing. Package List 1 x Main Unit 1 x Coil Head 1 x Discharge Needle 2 x Mini Light Bulb 1 x Incandescent Light 2 x Windmill Blade 1 x Wreath Wire 1 x Sound Cable 1 x Accessories Storage Box 1 x Adapter 1 x Power Cord 1 x User Manual