Feature 1、Multifunctional Music Coil: This music coil model toy has a beautiful appearance, high power, good arc effect, and strong functionality. It is also a plasma speaker that can use an arc to make a speaker and play various types of music. 2、Excellent Process: Using excellent circuit board, With reasonable design, achieve better and more stable quality. The coil adopts innovative design and technology, the secondary coil adopts high definition epoxy resin coating, beautiful and practical. 3、High Performance: The improved coil has high performance, reducing damage caused by high temperature or high voltage and high current. Provide you with convenient continuous work testing experiments. 4、Multiple Usages: This music coil toy kit features plasma speakers, lighting, ion windmills, ion wreaths, and other features. Very suitable for wireless transmissing experiments, meeting various production needs. 5、Complete Accessories: Equipped with discharge needle, small light bulb, windmill fan blades,wreath wire, sound cable, and other accessories, this kit is easy to operate, practical, and meets more experimental needs. Item Type: Music Coil Toy Material: Acrylic, Stainless Steel, PCB Arc Spark: Approx. 30mm / 1.2in Functions: 1. Plasma Speaker: Equipped with sound modulation circuit, this coil can generate sound by modulating the arc with music signals, serving as a plasma speaker. It can connect to various devices via Bluetooth or sound cable to play music with good sound quality and volume. 3. Ion Windmill: The arc is a high temperature plasma that can heat up air, creating thrust when the heated air flows. As the arc jets in opposite directions from both ends of the PCB windmill, it starts rotating. 4. Ion Necklace: A thin, elastic metal wire is applied as the discharge end, which generates thrust as the coil operates, causing the arc to sway and rotate due to the wire instability. By starting a long exposure shot when the wire begins to sway, you can catch a cool and amazing image. 5. Wireless Transmissing Experiment: This small coil can be applied to explore wireless transmissing and continue unfinished work. Package List 1 x Main Unit 1 x Coil Head 1 x Discharge Pin 2 x Small Light Bulbs 1 x Incandescent Bulb 2 x Fan Blades 1 x Wreath Line 1 x Sound Cable 1 x Accessory Storage Box 1 x Adapter 1 x Power Cord 1 x User Manual