2 different whistle tones and SOS mode
Easy to use, operated by single hand. Hand grip strap design for easier grip on hand.
Addition color ring and lanyard provided (To replace hand grip strap if not in use.)
Special design metal-tubing to reach 125dB+/-5dB loudness.
Handy & Hygienic without blowing the whistle
Suitable for all sporting events
SOS mode : Give out S-O-S Morse code automatically when emergency situations need help.
Multi-propose use suitable for : Referee, Coaches, Traveler, Adventurer, Guides, Cheerleaders,Lifeguards, Teachers, Traffic Guides, Dog Trainer
AAA battery, not included
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