1、Fun Educational Device: The BT speaker is an excellent 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 perfect 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.