Model QD03YS04 is a desktop Tesla coil plasma loudspeaker with an acrylic base shell designed for audio visual experiments and demonstrations. It produces visible plasma arcs that can be modulated to reproduce sound, making wireless transmission and plasma speaker concepts easy to explore and display. Key benefits Makes invisible physics visible: Converts audio signals into modulated plasma arcs so you can see and hear principles of frequency discharge and wireless transmission. Compact demonstration tool: Desktop scale and clear acrylic base shell make it suitable for classrooms, makerspaces, and office displays without occupying much space. Versatile experiment platform: Built for plasma loudspeaker and wireless transmission experiments, it integrates into educational setups and hobbyist projects. Eye catching audio visual effect: Adds an engaging visual layer to music playback, live demonstrations, and science outreach. Features and attributes Function: Tesla coil plasma loudspeaker and wireless transmission experiment model. Model: QD03YS04. Material: Acrylic base shell for stability and good visual access to the plasma column. Form factor: Desktop toy and educational experiment model sized for tabletop use. Performance: Generates visible plasma arcs and modulates them to reproduce audio as a plasma loudspeaker. Compatibility: Intended for use with common audio signal sources and wireless transmitters used in plasma speaker and wireless energy transfer demonstrations. Verify compatibility of your transmitter or audio source before use. How this product solves problems Demonstrates abstract concepts in a concrete way so instructors and presenters can explain plasma physics and wireless transmission with a live visual example. Provides a ready made platform for hobbyists and makers to prototype audio modulation and wireless transfer ideas without building a full Tesla coil from scratch. Enhances presentations and displays with synchronized sound and light, improving audience engagement. Typical applications Classroom demonstrations and STEM labs to illustrate frequency discharge, plasma formation, and audio modulation. Maker projects and electronics workshops for experimenting with wireless audio transmission and plasma speaker effects. Desktop display and event visuals where striking audio visual elements are required for presentations, small performances, or science outreach. Setup and considerations Designed as an experiment model for desktop use. Requires a compatible power source and an audio input or wireless transmitter commonly used in plasma speaker experiments. Check your equipment for compatibility. Acrylic base allows clear observation of the plasma column while keeping the device stable on a tabletop. Intended for educational and hobbyist use. Users should follow standard electrical precautions when operating voltage demonstration equipment. Model QD03YS04 delivers a compact, practical platform for exploring plasma loudspeaker behavior and wireless transmission concepts while providing an engaging audio visual experience for classrooms, makerspaces, and enthusiasts.