Titanium alloy single-tube whistle, EDC portable, high decibel

This single-tube high-decibel whistle weighs only 7 grams, is compact and lightweight, and is easy to carry. It has a hanging hole, which can be matched with a necklace or hung on a keychain by itself, and it can be carried flexibly. It adopts a single-hole design, the pipe wall is thickened, and the pronunciation is crisp and loud. It is suitable for outdoor, EDC and other scenes. When carrying it with you outdoors, in case of emergency and dangerous situations, it can be blown to send a rescue signal; it can also be carried with you during sports and mountaineering to meet practical needs.

Overall length:48mm (1.889in)
Width: 10mm (0.393in)
Material: Titanium 
Weight: 7g (0.246og)