Handheld Electronic Whistle

Handheld Electronic whistle can produce 120 decibels of sound, no matter how noisy it is, you can hear the whistle clearly. Four button cells for power supply, it can be used for a long time. It is really a good helper for referees or traffic police. And the Handheld Electronic whistle also can make some noise when you have a crazy partty! Your LOGO or artwork can be imprinted on it.