Education Experimental Product Wireless Lghting for Tesla Coil Loudspeaker Touchable Bluetooth AUX Audio Input for Science Education Feature: 1. High-efficiency PCB Circuit Board: for Tesla Coil adopts a newly designed PCB circuit board with reasonable circuit design. 2. Circuit Protection Design: for Tesla Coil Speaker has circuit protection design, which will not damage the input device, and can play music with better quality than ordinary arc plasma speakers. 3. Scientific Experiment: Manmake Lightning can be used to produce high-voltage lightning and conduct various scientific experiments, such as wireless power transmission, wireless lighting and insulator withstand voltage test. 4. Multiple Functions: Bluetooth Science Experience This music for Tesla has the function of wireless transmission and speaker, which can ignite gas tubes and various bubbles. 5. Best Gift: Education Experimental Product is a perfect teaching tool to stimulate students' interest in science, and it is also a great gift. Specification: Origin: Mainland China Type: SSTC(Solid State for Tesla Coil ) Music transmission mode: Bluetooth, AUX audio input Input voltage: 48V Arc length: 0~8 cm Discharge frequency: 5-50hz (lightning mode) Plug specification: US (can be equipped with conversion plug) Power supply voltage: AC110-240V 50/60Hz Host size: about 90 * 90 * 33mm/3.5*3.5*1.2in Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Packages: 1pc x Host 1pc x Discharge pin 2pcs x Atmosphere lamp 1pc x English instructions