As we know， whistle is a necessary tool in daily life， which can be used for a judge to start or stop a competition or for a teacher to call on students. Thus， today we are pleased to recommend a useful Survival Training Whistle for you. It&acute;s lightweight， easy to carry， convenient for you to take to any places. You can hang the whistle at knapsack or key ring， making you fashionable and practical. Especially when you are in danger in an unfamiliar place， this whistle will be helpful. What are you waiting for? This portable is your best choice in daily life， bring it back quickly!                                    Features            New and high quality， never usedThis is multifunction whistle for training or survival outdoorSimple design， easy to usePractical and durableBright and loud sound， long spreading rangeIt can be used as signal among fellows when they are at outdoorsPerfect for training dogs， campaign， mountaineering， exploring， etc                                                            Specifications            Condition    Brand New    <br>Available Colors    Blue/Green/Red/Silver/Black (Randomly Delivered)    <br>Material    Aluminum alloy    <br>Size    2.44" x 0.43" / 6.2 x 1.1cm (L x D)    <br>Weight    7g/0.25oz    <br>                                                            Package Includes            5x Aluminum Alloy Emergency Whistle Key Chain Survival