1、Included Parts: Mini music coil module kit, equipped with capacitor, inductor, indicator light, LED light, audio cable and other accessories, convenient and practical. 2、With Audio Cable: With 3.5 audio input interface audio cable, which can connect mobile phone, MP3 and computer audio, etc., and supports playing music with clear sound. 3、Voltage and Power: 15‑24V DC input voltage and 15W power are used, when 24V is used, 5‑10mm arc length instrument is ideal and has a wide application range. 4、Multiple Functions: Can work uninterruptedly for a long time, and can also use LED to emit light, supports wireless play of power transmission, rotating arc, etc. 5、Easy Installation: The music coil and module kit is compact, easy to install and disassemble, and used for various electronic experiments and demonstrations. Item Type: Music Coil Kit Material: PCB Color: Black Power: 15W Audio Input: 3.5 interface, can connect mobile phone, MP3 and computer audio 1 x Module 1 x Coil 2 x Capacitors 2 x Inductors 2 x Indicator Lights 1 x LED Lamp 2 x Power Interfaces 2 x Radiators 4 x Support Mounts 6 x Screws 1 x Audio Cable 1 x Power Cord 2 x Triodes