This whistle has a loud sound that can completely cover the crowd and the natural environment murmur. The whistle is super-loud, easy to blow, can easily penetrate a variety of noisy environments, indoor and outdoor sound is very shocking.
Features:
- This whistle is made of ABS environmentally friendly plastic material by fine processing, with the advantages of safety, environmental protection, and non-fading.
- This whistle is made of high-quality environmental protection materials to protect the teeth, the design of the protective teeth is easy to use, will not hurt the mouth.
- The whistle can be used in referee, training, outdoor activities.
