ITEM NAME:Mini Tesla Coil Plasma Speaker Electronic Kit 15W Kits With Stainless Ball DIY t Descriptio n Description: Power input: DC 15-24v, current 2A, DC5.5 interface / pin header Audio input: 3.5 jack, can be connected to mobile phone, mp3, computer audio Specifications: Color: Picture Color Board Size: 4.0*8.0mm Power: 15w Package Included: 1 * Mini Music Tesla Coil Air Arc Module Note: 1, this product is safe, power is not high, will not be injured by electric shock, but it is not recommended to touch the arc at the top of the coil, there will be a burning sensation. 2, do not touch the heat sink after powering for a long time, the temperature is very high, especially when using 24v high voltage, the heat is huge. If necessary, please add heat to the cooling fan, or the working time is too long, it is too hot, please turn off for a while. Use electricity. 3. It is recommended that when the Tesla coil is working, do not put the body or other objects close to the coil, that is, leave the space within half a meter of the coil and leave no other objects, because other objects as good conductors will make the coil form a good loop, absorbing the coil energy, making Tees Pulling the coil at this time shows that the effect is worse or cannot be demonstrated! Please note; 4, do not put mobile phones, mp3 and other electronic equipment close to the coil, otherwise the coil will generate high-frequency magnetic field interference, making mobile phones, mp3 and other equipment malfunction or even damage! Honesty is gold for all! Mini Tesla Coil Plasma Speaker Electronic Kit 15W DIY Kits With Stainless Ball