Wireless Plasma Speaker with Touchable Lightning Arc Gold Spark Gap Generator for Desktop Science Experiment Features： 1、Fun Educational Device: The BT speaker is an tool for educators and students alike, providing a hands-on approach to learning about complex scientific principles such as wireless lighting and wireless transmission. 2、Unique Decor: Beyond its educational value, this artificial lightning generator serves as a unique piece of home decor. Its ability to emit artificial lightning and play music adds a touch of intrigue and novelty to any living space. 3、Innovative Music Player: The wireless speaker stands out with its BT feature that allows it to play square wave music. This feature not only provides a unique listening experience but also creates a captivating visual display as the spark gap arcs dance to the rhythm of the music. 4、Thoughtful Gift: For those passionate about science and music, the artificial lightning toy is a gift. It offers an engaging and fun learning experience, making it a gift that is both enjoyable and memorable. 5、What You Will Get: This Tesla coil comes with a set of detailed instructions and necessary accessories. Plus, the inclusion of a square wave music library adds an element of entertainment. Specification： Features: Fun Educational Device: The BT speaker is an tool for educators and students alike, providing a hands-on approach to learning about complex scientific principles such as wireless lighting and wireless transmission. Unique Decor: Beyond its educational value, this artificial lightning generator serves as a unique piece of home decor. Its ability to emit artificial lightning and play music adds a touch of intrigue and novelty to any living space. Innovative Music Player: The wireless speaker stands out with its BT feature that allows it to play square wave music. This feature not only provides a unique listening experience but also creates a captivating visual display as the spark gap arcs dance to the rhythm of the music. Thoughtful Gift: For those passionate about science and music, the artificial lightning toy is a gift. It offers an engaging and fun learning experience, making it a gift that is both enjoyable and memorable. What You Will Get: This Tesla coil comes with a set of detailed instructions and necessary accessories. Plus, the inclusion of a square wave music library adds an element of entertainment. Specifications: Main Material: Acrylic, Metal Power Supply Voltage: 110-220V AC 50/60HZ Power: 0-120W Plug Type: UK Plug Color: Gold Host Size: 10.6*10.6*5.1cm/4.17*4.17*2.01inch Package Information:? Package Size: 19.5*10.5*13.5cm/7.68*4.13*5.31inch Package Weight: 600g/1.32lb Package List: 1 * Host 1 * Discharge Needle 4 * Small Bulb 1 * Power Adapter 1 * Manual Package List： 1 * Host 1 * Discharge Needle 4 * Small Bulb 1 * Power Adapter 1 * Manual