LEGO 10970 DUPLO Feuerwehrwache mit Hubschrauber, Blaulicht, Martinshorn: Lobigo.de: Spielzeug
BrickLink - Part 52189c02 : LEGO Duplo Siren with Light and Sound, 1 x 2 Base with Red Button and Trans-Dark Blue Light Covers [DUPLO, Vehicle] - BrickLink Reference Catalog
Lego Duplo BLUE EMERGENCY SIREN LIGHT LIGHTS for Firetruck Ambulance Police Car | eBay