MIDNIGHT
With over 5200 reviews on Amazon, we are rated the Most Efficient, Most Reliable, and Loudest Rescue/Outdoor Whistle in the world. We promise that our product will hold up to any Outdoor Atmosphere you may endure. With Our unique Tri-Frequency design, we configured 3 highly rated whistles into one unit. We hold a reputation for being engineered and designed in the USA, and also used on US Aircraft Carriers. We supply Professionals all around the world, and including underwater Scuba-Divers.
Hyperwhistle, strives of Being the Premium choice when it comes to Rescue/Outdoor/Survival whistles. That's Why Hundreds of Thousands of Professionals choose our products.
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
For more Wholesale inquiries please visit our Reseller Program
- WARNING- The HyperWhistle is extremely loud. Continued use at max output without hearing protection may cause hearing loss. - Use included ear protection and never blow near other's ears. 
















