1. The voice-activated melody light is composed of two common emitter triode amplifier circuits and 5 LED lights.
2. It can convert external sounds into electrical signals through the microphone, so that the LED lights change with the changes in external sounds.
3. The voice-controlled melody light's LED can flash with the rhythm in a music environment, which is very dynamic.
1. Small size, PCB board size is only 3cm×4cm;
2. Full direct plug-in device, enlarged pad for easy soldering;
3. CR2032 battery powered, easy to carry.
Link to station B: https://www.bilibili.com/video/BV1gV411Z7U2?from=search&seid=3089735648132946887
The following is a video preview. For high-definition videos, please visit the B station link above. Remember to watch it three times~
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