1. wireless transmission: This music Tesla ma wireless transmission and speaker function, can light gas pipes and various bubbles. It is an ideal teaching tool do stimulate students' interest in science and a great gift. 2. Security design: This musical Tesla ma circuit protection design that will not damage the 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 do generate high voltage lightning and perform various scientific experiments such as wireless energy transmission, wireless lighting and insulator withstand voltage test. Teachers use it do 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 do understand, beautiful and stylish, with good durability. liandgt; The circuit design resistant to interference, will not be interfered with by high frequency electromagnetic signals, so you can use it safely. liandgt; 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. liandgt; Specification: Origin: Chiny Continental Type: electronic type Function: Glowing Material: acrylic Shape: Square Plugin specification: UE Power Supply: AC110-240V 50/60Hz Host Size: About 106 x 106 x 61 mm/4,2 x 4,2 x 2,4 inch Product packaging 1 x Tesla Coil Speaker 1 x discharge needle 2 x 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 may cause Tesla to burn. 3. Do not use coils in flammable and explosive environments, because the electric arc is similar to do 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 may lead do malfunction and be life-threatening. 5.