Plug and Play: The wireless transmission experiment model requires no audio cable connection, and when plugged in, it will present an amazing sparkling melody. Good Sound Quality: When plugged in, it will play amazing melody, the quality of playing music is better than curved plasma speakers, jumping to the rhythm of the music. Good Safety: The arc of the wireless transmission experiment model can be touched at will, with only a slight feeling and temperature, don't worry, use it with confidence. Multi Functions: Arc generator has wireless transmission and speaker function to light up neon lights and various bubbles, perfect for people learning the mysteries of science and physics. Wide Applications: Music coil arc can be widely used in physics teaching, scientific experiments, electronic competitions, graduation projects, birthday gifts, etc. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia