1、MULTIPLE FUNCTION: This music coil has wireless transmission and speaker function, it can light gas pipes and various bubbles and play various music. 2、GOOD PROTECTION: With circuit protection design, will not damage input devices, can play better music than arc plasma speakers, no format restrictions. 3、WIDE APPLICATION: This music coil kit can be used in science projects for kids, physical machine learning, teaching demonstrations, is a great science gift. 4、DISCHARGE DEVICE: Equipped with 3pcs top discharge devices, the working mode can be easily switched by replacing the device, convenient in operation. 5、DIY EXPERIMENT: A perfect teaching tool to stimulate students interest in science, suitable for arc plasma speaker wireless transmission experiments. Item Type: Music Coil How to Use: Step 1: Open the package and check the products and accessories, including coil and switching power supplies. 3.5mm audio cable, discharge needle, ion windmill accessories, ion garland accessories, neon lights and instructions. If you bought the bluetooth version, with the coil powered on, open the bluetooth settings of your phone, search for a bluetooth device named yski 18a, and then make a pairing link. After the link is successful, you can use the music playback function within a certain range. Note: The audio cable cannot be plugged in when using the Bluetooth function. Step 3: Test interval lighting. Grab the metal feet of the neon sign in your hand and slowly approach the coil. Neon lights glow when they reach a certain distance. If you have other gas containing lamps (such as fluorescent incandescent lamps, some rare gas lamps), you can also experiment with open air lighting. When no accessories are placed on the top of the coil, there will be no arcing, which can improve the lighting distance and effect, but it is not recommended to use this operation for a long time! Step 4: Test the ion windmill, turn on the power switch and stop the coil. Remove the top discharge needle and put on the ion windmill accessory. Then turn on the power switch and the coil works. The arc is ejected from the two ends of the ion windmill fittings and starts to drive the windmill to rotate. Step 5: Test the ion ring, turn off the power switch, and stop the coil. Remove the ion windmill accessory and install the ion rosette accessory. Then turn on the power switch, the coil works, and the arc is ejected from the top of the ion garland, which starts shaking and scratching because the thin wire of the ion garland is unstable. If we start the delay shot function when the ion garland starts to arc (the delay is set to around 3 seconds). 1 x Music Coil 1 x Audio Cable 2 x Neon Lights 1 x Bulb 3 x Discharge Device 1 x Adapter 1 x User Manual