We have ten of these, but I don't know from which series! When pressing the yellow button it makes a sound that could be a train or a tractor or something like that. We are curious. Does anyone know?

Front of the item

Back of the item

  • It doesn't look like any Lego piece I've ever seen. Does it have Lego written on it anywhere? Are there any numbers written on it? Any other angles? Jul 29, 2016 at 20:20
  • I have updated the question with more info on the sounds it makes, and with an image of the back. Jul 30, 2016 at 6:56

1 Answer 1


This is a Duplo Sound Effects Brick 2 x 4 with Water and Pump Sounds (Set 5605) brick from 2008. It featured only in 1 set, 5605 Tanker Truck.

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