HyperWhistle Rescue Whistle 142db

Wattre's HypeWhistle is rated the Most Efficient, Most Reliable, and Loudest Rescue/Outdoor Whistle in the world. The HyperWhistle will hold up to any Outdoor Atmosphere you may endure. With it's unique Tri-Frequency design it is configured as 3 highly rated whistles into one unit. With a reputation for being engineered and designed in the USA, and currently being used by US Service members on US Aircraft Carriers. Professionals all around the world including underwater Scuba-Divers are currently using the HyperWhistle.

Features:

• 142+ dB Output
• Anti-Microbial Composite, All-Weather Construction
• Up to 2 Miles of Usable Range
• Patented Design US8925478
• Unique Radial Tri-Frequency Design
• Naturally Buoyant
• Works in All Weather Environments, Including Underwater
• Weight: 21 grams or 0.7 ounces
• Dimensions: 3.125" L x 1.125" W