Features 1、MAIN PURPOSES: Produce high temperature and high-pressure plasma, used for wireless power transmission, lighting fluorescent lamps, generating wonderful arcs. 2、WORKING RANGE: The voltage input is 15-24 V DC, the arc length is 24 V, and 5-10 mm is the best, it can play clear mobile phone or computer music. 3、MULTIPLE USAGES: The kit supports continuous work for a long time, and can light LED, foam energy saving lamp and flash frequency tube, etc. 4、INCLUDED TOOLS: Including circuit board, coil, heat sink, interface, capacitor, wire, screw and other accessories to meet your various DIY needs. 5、APPLICABLE SCENES: Pperfect for wireless transmission experiment, DIY electronic products, classroom scientific experiment demonstration, etc. Specification Item Type: Mini Music Coil Kit Material: PCB Application: Used to produce ultra high voltage, low current and high frequency alternating current. Package List 1 x Circuit Board 1 x Coil 2 x Heat Sinks 1 x Wire 2 x Vacuum Pipes 1 x Audio Socket 1 x DC Power Socket Interface 2 x Color Ring Resistance 1 x Monolithic Capacitor 2 x Leads 1 x Electrolytic Capacitor 1 x Diode 4 x Copper Columns 6 x Screws