World's Loudest Hyper Whistle
Rs. 2,060
Hyper whistle is the world's loudest whistle available in the market till date. This device overtakes the limit of decibel-level of common whistles and produces 142db alarm that can easily be heard within 3 kilometers, that too, very loud and clear. Perfect for referees, coaches, instructors, life guards, for self defense, survival and emergency purposes.
