FOX 40 EXPLORER WHISTLE
The World`s most advanced whistle, the Fox 40 is a superior alerting and commincation device. With no moving parts to freeze or jam and a sound that can be heard over a mile away, they are the preferred safety and sport whistle.
INTERNATIONAL WHISTLE CODE: Blasts should last 3 seconds.
1 Blast - "Where are you?"
2 Blasts - "Come to me"
3 Blasts - "I need help"
If you hear these signals respond with one blast.