New and high quality. This music player features an upgraded design that allows you to play audio from your phone or computer with clear sound output. It operates on a DC input voltage of 15-24V. At 24V, it produces a 5-10mm arc length, ideal for continuous operation. Compact in size with a reliable power range, it supports long-term uninterrupted use. It can also power LED lights and foam accessories. Compatible with energy-saving lamps and frequency flash tubes, it enables wireless power transmission and rotary arc effects. Wireless transmission principle: A coil connected to both ends of an LED lights up when near the emitter device. The technology is based on resonant wireless power transfer. Parameters: Power: 15W Power Input: DC 15-24V, 2A, DC5.5 interface Audio Input: 3.5mm jack – compatible with phone, MP3 player, or computer audio Plasma speaker stereo system: Utilizes plasma arc to vibrate air, converting electrical arcs into sound waves. This innovative design delivers enhanced high-frequency response compared to traditional speakers. Offers good sound quality, stable performance, and safe operation. Can play audio from phone, MP3, or computer without requiring grounding. Easy to use and ideal as a compact home audio device. Precautions: 1. While the product is safe and low-risk for electric shock, do not touch the top of the arc coil as it may cause a burning sensation. 2. After prolonged use, do not touch the heat sink as it may become very hot, especially at 24V. A fan interface is provided; consider adding a cooling fan if necessary. Color: Green Material: PCB + Metal + Electronic accessories Package Contents: 1 x DIY Mini Speaker Music Coil Kit (includes DIY parts; color of heat sink and audio cable may vary randomly – specific colors cannot be requested) Note: Accessories may vary in color and appearance across different production batches, but this does not affect functionality. The package includes only the items listed above; other products are not included. Please note: Lighting and display differences may cause slight variations between the item’s color in images and the actual product. Measurement error allowance is +/- 1-3cm.