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The Bluetooth Battery Cube has built-in wireless connectivity. The switch on the Bluetooth Cube has 3 positions, ON/OFF/BLUETOOTH. Move it to ON and the LED on top turns green and it’s ready to power your builds. Move the switch to BLUETOOTH and the LED flashes blue waiting to be paired with your device. Just launch the Circuit Cubes App
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Compact Battery + Controller
This is my first purchase of a Circuit Cubes product after hearing about them from Lego builders online. Sometimes the regular Lego motors and control are just too large to easily integrate into a build. I am very impressed with the size of this combined battery and bluetooth controller. I have now had it long enough to comment on its longevity but it works great and is easy to control with the Circuit Cubes app. It did now come with any kind of manual though, nor could I find one online. A getting started guide would be a great addition.
R
Randall · October 6, 2026
I dislike that my product was delivered at the mailbox and I rather receive my product delivered at the front door of my house.
