Dog Whistle Thunderer 660

Acme Dog Whistle Thunderer 660. A very high-quality, loud and high-pitched Acme 660 Thunderer whistle (660 MHz / 117 dBA).

• A small, traditional pea whistle with a distinctive trilling sound, made of hard and durable polycarbonate plastic.
• Easy to blow and produces a very high-pitched sound.
• A very popular and versatile "official" whistle, commonly used for training, handling and as a sports referee whistle, as well as by the military and police forces.
• The whistle's sound is well suited to rugged outdoor conditions, although adverse weather conditions may slightly affect its sound projection.

Colour: black