The Rescue Howler™ Whistle emits a piercing dual-frequency 110dB signal thanks to a dual-chamber, fail-safe, pealess design.

Be Heard - 110dB signal is audible over 1 mile.

Durable - Made from unbreakable ABS plastic.

Fail-safe - Pea-less design works in all conditions - won't freeze or stick to lips when cold.

Intense Sound - Triple-frequency sound cuts through surrounding noise.

Specifications:
Size: 5.5cm x 0.64cm
Weight: 5.6g each