USB Sports Referee Emergency Electronic 3 Tone Whistle

The electronic whistle is made of high-quality ABS environmentally friendly materials, tasteless and healthy. Hand-held electronic whistle does not need to be blown with the mouth, especially in this special period.You can also tie the whistle to your belt or shoulder straps for quick and easy use in case of emergency.3 Tone, 3 levels of volume adjustable, Maximum volume provide up to 120-150 dB, You can choose the best sound mode and volume for your purpose. Louder than standard whistles, sound fast and spreads far, the whistle sound can be aimed in a specific direction.And electronic whistle with LED flashlight , can be used for lighting and SOS, suit for outdoor and emergency assistance. it is an essential choice for outdoor activities and camping. 5.35" L x 1.58" W x 1.5" Thick