• This music tesla has the function of electric power wireless transmission and loudspeaker, can light gaseous tube and kind of bubbles.It is a perfect teaching tool to spark students’ interest of science, also a great gift.so the SSTC Tesla coil becomes a piece with It is a multi-functional artwork with high playability, good viewing, practical science education and so on. 
• Long arc mode and music mode: Long arc mode releases lightning at a fixed frequency. With the knob turned to medium power, you can touch the lightning with your hand, you will feel a little tingling, and you will appear extra powerful in front of your friends. Music mode, connected to the device through Bluetooth, plays square wave music, and lightning energy is concentrated in clusters.and you can see that the arc of the Tesla coil is beating with the music. 
• It's small enough, only 3.5*3.5*2in,a more complex circuit design was adopted, and a larger area of the top boost coil was upgraded.but it has a shocking energy. turn the voice slowly to avoid big shock by the arc sound. The optimized Tesla coil lightning arc is long and thick.
• Upgrade: more stable Bluetooth connection! The self-developed Bluetooth chip can adapt to all mobile phones, computers and other Bluetooth devices. Better coil technology! It is covered with gold-plated and transparent ink, with better dust-proof ability and improved stability.
• The operation is convenient and simple, you only need to tighten the discharge needle, turn down the power, frequency, and plug in the power supply, you can see the lightning in front of your eyes, switch to the music gear,Use a 122 first square wave music USB stick, which supports Type-C. You don't need to download it to your phone, just insert the USB stick. Let lightning dance to the rhythm of music.