Musical Coil Kit Square Wave Arc Generator for Teaching

1 Square Wave Music Coil: This music coil kit features a circuit guard design that does not damage input devices. It can play square wave music of better quality than curved plasma speaker, and can light up LED bulbs by plugging in the power. 2 Long Arc Mode: Featuring artificial spark length of 0-10cm. Long arc mode releases artificial spark at a fixed frequency. When the knob is turned to medium power, artificial spark can be touched with only a slight tingling sensation. 3 Easy to Operate: No need to connect sound cable, just tighten the discharge pin, lower the power and frequency, and then insert it to present an amazing and sparkling melody. Supports horizontal or vertical placement, flexible and practical. 4 Small and Powerful: This musical coil arc generator supports square wave music. Generate different tones based on different discharge frequencies, and the spark gap arc can also jump with the rhythm of the music. 5 Teaching Aid and Gift: This music coil has wireless transmissing and speaker function, which can light up gas tubes and various light bulbs. It is the perfect teaching tool to motivate students interest in science and is a great gift.

What's in the box
1 x Spark Arc Generator