Mini Tesla Coil Musical Tesla Coil with Built-In Bluetooth for Artificial Lightning Features: 1. Dual mode (Bluetooth music mode / flash mode) 2. Easy to use 3. High temperature protection (automatically stops discharging if temperature is too high, resumes operation when below warning level) 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 operate near flammable or explosive materials. 2. Avoid arc contact with other electronic devices. 3. Do not touch the discharge needle to prevent injury. 4. Intended for adult use; minors must be supervised. 5. Do not place objects on the main unit panel to prevent heat damage. 6. Not suitable for individuals with pacemakers. Package includes: 1 x Main unit 1 x Discharge needle 2 x Ambient light