outdoor sports safety alarm different use electronic whistle JG001

Functions:
 Whistle Whistle Whistle Whistle Whistle Whistle Whistle Whistle Whistle Whistle Whistle Whistle Whistle Whistle Whistle 
1.Two different whistle tones selectable by user. 
2.Easy to use: operate by single hand
3.Strong loudness same effect as traditional whistle. 
4.Special design metal-tubing to reach 125dB +/-5dB loudness.
5.Handy & Hygienic without blowing the whistle
6.Suitable for all sporting events.
7.Alert for emergency situations where a threat to persons exists.
8.Multi-propose use suitable for: Referee, Coaches, Traveler, Adventurer, Tour Guides, Cheerleaders, Lifeguards, Teachers, Traffic Guides, Dog Trainer…

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