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A pedometer that you can always carry with you with you with an emergency whistle that is useful for disaster preparedness and crime prevention.
Equipped with a 3D sensor, so it can be measured from the neck or in the pocket.
A small breath can be loud sound (over 100 dB) to call for help when there is no voice in the event of a disaster.
Produces 2 types of sounds that are easy to hear by human ears at the same time.
The whistle notifies you where you are and is one of the most useful items that are trapped in building or elevators such as an earthquake.
Does not use batteries.