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Sets that have 4774c01: Electric Light & Sound Brick 2 x 2 x 1 & 1/3 Town Siren (Complete)
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Can Sound Bricks be reprogrammed? : r/lego
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LEGO PART 55206c01 Sound Brick 2 x 4 x 2 Clear Top - Revving Motor Sound | Rebrickable - Build with LEGO
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LEGO Electric Light & Sound Brick 1 x 4 with Twin Top Lights (4771) | Brick Owl - LEGO Marketplace
LEGO - Duplo Sound Effects Brick with Dark Gray Base and Castle Sounds | eBay
LEGO® R2-D2 75308 Light and Sound Kit – Light My Bricks USA
Amazon.com: LEGO 60246 City Police Station Building Set with 2 Truck Toys, Light & Sound Bricks, Drone and Motorbike : Toys & Games
LEGO Sound Brick 2x4x2 Light Bluish Gray Doorbell Dog Barking Sound 5771 55206 | eBay
Lego Duplo Castle Sound Brick Ghost Swords Horn Bird Witch Frog 3615 Theater | eBay
Lego Parts: Electric, Sound Brick 2 x 4 x 2 with Light Bluish Gray Top – Wholesale~BricksandFigs
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How to add sound, light and motion to your LEGO creations with the PFx Brick
PFx Brick – Special Fx for LEGO® Creations by Fx Bricks — Kickstarter
