Here's what other sites are saying:
The JetScream emergency whistle from Ultimate Survival Technologies issues a powerful, 122dB shriek that carries over background noise and long distances so you can signal for help when it's critical.
The Ultimate Survival Technologies Jetscream Whistle sends your distress call loud and clear. Its pea-less design resists freezing and works even when wet. Reaching 120Db, this whistle can be heard over nearly any natural or man-made noise.
- Mountain Gear
JetScream provides an amazing 122Db, ear-piercing shriek above most natural or man-made noises Includes a short lanyard attachment to hook it to a key chain, purse, backpack, or wrist Even works when wet Length: 2.3" Weight: 8.5g Item Specifications Includes Whistle with mini-lanyard
- Mountains Plus
The JetScream Whistle focuses manmade air streams through harmonically tuned chambers to create a piercing shriek audible over most other natural and manmade noises. Due to its pea-less design, JetScream even works when wet, making it the perfect accompaniment to all outdoor activities near rivers, lakes, or oceans. Flat enough to fit in your pocket and attached to a lanyard, the JetScream is just as useful in the city as it is in the woods. The JetScream can be found in the survival kits of some of the most elite government forces, including the United States Air Force and the Navy Seals.Size: Length: 2.3 inches (5.8 cm) Weight: 0.3 oz (8.5g).
NRS Storm Whistle
Vargo Titanium Emergency Whistle
Harmony Fox 40 Whistle
Coghlan's Four Function Whistle
$3 - $4
ACR Signal Whistle
Liberty Mountain Aluminum Whistle
Ultimate Survival Technologies Hear-Me Whistle
Nexus Rescue Whistle