(Acme) SIREN WHISTLE From England This siren whistle is completely hand assembled in England and is the finest available. Beginning life as the yclists Road Clearer' in the 1880s, this amazing sound effect is now part of every percussionist's kitbag. A real whoosh of sound, the only whistle that sings on, even when the blowing has stopped! Used very often in orchestras and commercially wherever an authentic siren sound is needed.