LEGO® Light & Sound Police Siren Brick 40931c01

Bring interactive lighting and sound to your LEGO® builds with this Light & Sound Brick 2 x 6 (40931c01). Press the integrated button to activate flashing lights and a siren effect, making it an easy way to add electronic functions to vehicles, displays, and custom creations without external wiring.

LEGO® Light Brick for Interactive Builds

This self-contained electronic brick combines lighting and sound in a compact 2 x 6 element. It is suitable for emergency vehicles, service vehicles, display models, and original MOCs where moving beyond static building adds extra visual interest.

Build Ideas

• Emergency vehicles: Add flashing lights and a siren effect to police cars, rescue vehicles, ambulances, or fire engines.
• Service and utility vehicles: Create maintenance trucks, airport vehicles, roadside assistance models, or construction support equipment.
• Custom MOCs: Incorporate interactive lighting into original creations, exhibitions, or display layouts.
• Expand your collection: Discover more electronic elements in our LEGO® Light Bricks collection or browse additional structural elements in our LEGO® Bricks collection.
• Police vehicle builds: Add a flashing light and siren function to patrol cars, vans, and specialist vehicles, then explore more LEGO® police accessories and equipment.

Product Details

• LEGO® Part Number: 40931c01
• Element Description: Light & Sound Brick 2 x 6 with 2 Holes and Trans-Dark Blue Top and Siren Sound
• Size: 2 × 6 × 1 studs
• Function: Integrated flashing lights and siren sound with internal battery.