Ujjdwiurgh 2 Pcs Whistle Loud Emergency Referee Whistle Hand Whistle for Referees,Sports Teachers,Dog Trainers,Trainer Accessories

Versatile uses: the whistle requires simple manual operation and is fully controllable at any time, even during training and games, so you are not out of breath. It can also be used as portable outdoor sports whistle, dog trainer etc. portable with saving space and easy to clean, so you can use it with confidence. the sports whistle with good sonority, crisp and loud, doesn't use a pea as the core, which can be blown easily, and its volume and pitch can be controlled; In addition, the whistle can be applied in many occasions to attract others' attention the hand whistle is particularly hygienic, as it does not have to come into contact with the mouth and you do not have to worry about , it can be used by many people.