Aluminum Emergency Whistles

CPN-563697503

Each emergency whistle is equipped with a round key chain ring for attachment to a lanyard or keys, you can also attach it to your wallet and bags, portable design, convenient to carry with you everywhere, especially convenient for outdoor activities.when traveling outdoors, it can confirm your location, avoid getting lost, find a companion, and provide assistance, can be applied in emergencies, referees, training, sports and so on.