Teutonic Noise

WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.

Plastic siren/whistle made in West Germany. A touch over 3/4" in diameter and a similar touch under 2" long. that makes it hard, but not impossible, to swallow, so please use care in teaching youngsters to sound like a miniature air raid siren. The well-made whistle has a perforated metal disk that rotates in response to a silent blast from the perpetrator's, lungs. This creates a high-pitched reasonably loud and certainly distinctive siren-sound that picks up pitch in relation to the air velocity, sustains it as long as your wind holds out, and winds down quickly thereafter. A fine way to signal your arrival or departure. Probably not loud enough to collect the clan at the beach, but it should get their attention in the classroom!!