
Bluetooth Upgrade Kit
Circuit Cubes
$34.98 + $9.99 shipping · or same-day in San Antonio
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Sold by Rubber Ducky Dojo · Nationwide — delivered by Jockey courier Arrives Thu, Nov 5 – Thu, Nov 12
$34.98 shelf price + estimated tax + the shipping or courier fee for the choice you make, shown in full before you pay.
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Transform any circuit cube build into a fully controllable masterpiece with our Bluetooth Upgrade Kit! With a battery, two motors, and 36 parts (bricks, wheels, gears, axels, connection wires), easily pair with existing Lego pieces to create endless vehicles, mech monsters, and more. Launch the app with your smart device and let your creations come to life. Created and approved by STEM teachers and kids.
Availability verified during our latest store check. If the item isn't on the shelf when we get there, the order is cancelled and you are refunded in full.












