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Quantity
1
Description
The world is full of invisible signals. This badge lets you hear them.
Hidden electromagnetic frequencies are all around us, and so much can be discovered through listening to these waves. The way that Bluetooth hardware sounds when it’s op...
Reviews
4.8
5 ratings
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A great introduction project to soldering and electronics
B
Brad · May 30, 2026
The BEST project. A perfect first soldering project. My neice and I had TOO much fun.