Mini Tesla Coil Musical Tesla Coil Built-In Bluetooth For Artificial Lightning Features: 1.Dual mode (Bluetooth music mode/flash mode) 2.Easy to use 3.igh temperature protection (stops discharging if temperature is too high, resumes operation below warning temperature) 4.Frequency adjustment 5.Length adjustment 6.ABS housing Specifications: 1. Body material: transparent acrylic 2. Music transmission method: Bluetooth/AUX audio input 3. Power input: 48V 4. Rated power: 100W 5. Arc length: 0-8cm 6. Discharge frequency: 5-50hz (lightning mode) Attention: 1. Do not work near flammable and explosive materials. 2. Avoid the arc hitting other electronic equipment. 3. Be careful not to be poked by the discharge needle. 4. Minors need to be used under adult supervision. 5. Do not place objects on the main unit panel to avoid damage to the housing from high temperatures. 6. Do not use if you have a pacemaker. Package includes: 1*main unit 1*Discharge needle 2*Ambient light