H921 Retro Brass Whistle Whisper Outdoors Surge Trainer Referee Key Chain Pendant Outdoor Equipment EDC | Спорт и развлечения

H921 Retro Brass Whistle Whisper Outdoors Surge Trainer Referee Key Chain Pendant Outdoor Equipment EDC | Спорт и развлечения

12940

Material: brass

Size: Length 47mm / 49mm, diameter 10mm

Accessories: copper key ring

Weight: 19g

Features: The overall use of high-quality brass to create (including copper ring), innovative design, stylish small, full of materials, superb technology. After polishing through the advanced pickling process, which can effectively protect the sentry, easy to scratch, and antioxidant.

Uses: outdoor survival, self-defense life-saving, EDC players collection


The following is the general whistle language:

● short tone (within one second); ■ long tone (3 seconds or more);

Command interval within the interval 2 to 3 seconds, the interval between the instructions for more than 30 seconds (such as repeat the need to send instructions for more than 30 seconds)

● ● (two short and one long) to the direction of the whistle set

● ■ (a short one long) starting to accelerate forward;

(A short two long) someone left behind, before the team waiting for the team;

● ● (three short) encounter difficulties for help

This is an internationally accepted SOS code