• Electronic for :it is a teaching tool to spark students' interest of science, also can be a nice present, for
• models for adults:the electric arc generator can play music in better than arc loudspeaker,arc loudspeaker
• Beat electron:no electrical appliances can be placed around when it is turned on, it forms and interfere when turning on,electric arc generator
• Transmission kit:not only a teaching tool, but a multi-functional for viewing, great your choice, electronic 2023
• Electrical discharge machine:with circuit protection design, and it will not damage the input device, professional to use,solid state music coil