Description: Function: This music Tesla has transmission and speaker functions, which can light up the and various bubbles.GIFT: It is the perfect teaching tool to stimulate students' interest in science, and also makes a great gift.Device: It is a smart device used for transmission experiments.Occasions: It can be used to generate high voltage and conduct various scientific experiments, such as power transmission, lighting, insulator withstand voltage test, etc.Circuit Protection: This music Tesla has a circuit protection design, which will not damage the input device, and can play music with better quality than ordinary curved speakers. Specification: Plug Type: US Size Chart: 9.6cmcmx9.6cmcmx3.3cm/3.78inchx3.78inchx1.30inch Package Includes: 1 Music Tesla Coil1 Discharge Pin1 Electric Pin2 Ambient Light Note: 1.This is not infant toy, please take away from children to avoid eating.2.Please allow slightly errors due to manual measurement and different monitors.