1. Wireless transmission: This Tesla music has wireless transmission and speaker function, it can light gas pipes and various bubbles. It is an ideal teaching tool to stimulate students' interest in science and a great gift. 2. Protection design: This Tesla music has a circuit protection design that will not damage your input devices and can play music with better quality than regular plasma speakers. 3. easy operation: Bluetooth compatible connection, convenient and fast . Using the newly designed PCB printed circuit board, the circuit design is reasonable. 4. It can be used to generate high voltage lightning bolts and conduct various scientific experiments, such as wireless power transmission, wireless lighting, and insulator withstand voltage test. Teachers use it to demonstrate to students the principles of high-frequency expansion and skinning. effects, etc 5. Gold -plated coil design with clear and complete winding coil , which makes Tesla 's basic coil structure easy to understand, beautiful and stylish, with good durability. The circuit design resistant to interference, will not be interfered with by high frequency electromagnetic signals, so you can use it safely. The Tesla coil can generate an electromagnetic field with high frequency and high pressure, so that lights containing conductive gases can be illuminated by the electromagnetic field. Specification: Origin : Mainland China Type: electronic type Function: Glowing Material: acrylic Shape : Square Plug specification: EU Power Supply: AC110-240V 50/60Hz Host Size: About 106*106*61mm/4.2*4.2*2.4inch product packaging 1 x Tesla Coil Speaker 1 x discharge needle 2x Ambient Lighting 1 x User Manual in Chinese and English Safety of use 1. When the product is running, do not touch the electrode directly with your hands, as this may cause skin burns; 2. During the operation of the coil , the surrounding electronic products will be severely disrupted. This is characteristic of the Tesla coil itself. If Tesla does not start successfully at the beginning, touch the discharge needle with an insulated screwdriver, but do not touch it for a long time, this can cause Tesla to burn. 3. Do not use coils in flammable and explosive environments, as the electric arc is similar to a flame and can ignite flammable substances (alcohol, gasoline, paper towels, clothing, etc . ). Therefore, it is forbidden to use the device without supervision. When using the device, you should stay away from flammable objects 4. People with a pacemaker are forbidden to use the device! People with a pacemaker should stay away from the device! If there are people with implantable/ non -implantable electronic medical devices nearby, attempts to turn these devices on can lead to malfunction and life-threatening. 5.