1. Wireless Transmission: The Music for Coil Speaker offers a unique blend of wireless transmission and speaker functionality. Capable of igniting gas-filled tubes and a of , it serves as an engaging tool for show-stopping demonstrations and compelling experiments. 2. Perfect Teaching Tool: This touchable artificial spark device piques student interest in scientific study, making it an exceptional teaching aid. Its fascinating capabilities also an excellent gift for those intrigued by nature and technology. 3. Versatile for Various Scientific Experiments: This arc generator is excellent for conducting a range of wireless transmission experiments. With its ability to create high-voltage , it's perfect for conducting various scientific experiments including wireless power transmission, wireless lighting, and insulator voltage resistance tests. 4. Demonstrates Amplification: The voltage pulse electric arc generator is a useful tool in teaching students about amplification and high-frequency skin effect principles. Its hands-on approach engages learners and makes the learning process exciting. 5. Safe Circuit Protection Design: This arc plasma loudspeaker features a circuit protection design that safeguards input devices from potential damage. It can of superior quality compared to standard arc equal plasma speakers. With a convenient and fast BT connection, it uses a rationally-designed PCB circuit board for best performance Type:SSTC(Solid State for Coil) Music transmission :Bluetooth-Compatible, AUX audio input Input voltage:48V Arc length:0-8 cm Discharge frequency:5-50hz (for Fast Charging mode) Note:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC220V Colour:As Shown Material:Metal Package Contents: 1 x Music for Coil Speaker 1 x Discharge Needle 2 x Ambient Lights Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.