Features
- This is a novel design of a 60-second timer piece
- High quality PCB, has clearly marked the electronics components, even beginners can easily solder successfully.
- It is fun to build and nice to look at when finished, it’s not only a PCB board for practicing welding, but also a decorative gift for you.
- Comes with user manual, which will guide you how to finish step by step, perfect for school basic electronics experiment projects.
- Operating voltage:DC5V
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