There's a built-in speaker

Get your summer glow on with an adorable 10" firefly

There are 4 light up modes to chose from

Can you arrange them so they fit perfectly within the grid

The Galaxy Navy feels a bit like riding among the stars on a rocket ship and the Fairy Purple creates a dazzling ride

10913 DUPLO Brick Box bridges There's a built-in speakerSized for toddlers, this 65 piece set opens a world of creative play and imagination. Combine the colorful assortment of bricks and accessories like moving wheels, flowers, roof and window into endless fun, complete with educational and developmental benefits. For ages 1 1 2 5 yrs, from LEGO.