With 3 different frequency voices. 
Lightweight and easy to carry with a keychain. 
Simple to use with a long life span. 
Suitable for outdoor activities like camping, hiking, hunting, adventures, etc. 
A necessary equipment for outside help. 

Material: Plastic 
Size: 7 * 2.8 * 0.7cm / 2.8 * 1.1 * 0.3in 

 

Package : 1 PC Survival Whistle