The loud 97 decibel whistle will help you in the event of a disaster. You can use the LED light in the dark to notify others of danger, and it is also useful for crime prevention. Introduced in the media!! 28th February 2020 (Magazine) Magazine House Hanako. There are many other popular items. This listing is for the media list: https://hands.net/special/list/l0020414. Features: Star of Life. The first aid is created by the rapid cooperation of all people. Emergency doll with integrated LED light and whistle. Simple and reliable for illuminating, ringing (notification) and emergency signs. Uses 4 LR41 button batteries, and it can be used even in poor conditions due to its splash-proof design. Continuous lighting time: Approximately 20 hours. Splash resistant.