Characteristics: The electronic whistle avoids contact with the mouth and is very suitable for referee coaches, P.E. teachers, navy, outdoor camping, sports competitions, road guides, pet training, self-defense emergencies. There are 3 tones and 3 levels to meet different needs. High volume, can provide sound power up to 120-150dB. It is easy to attract attention. At the same time, compared to traditional whistles, it can also make a louder, stronger and consistent voice. One LED can be used for lighting or outdoor camping. The emergency flashlight can also be used to send SOS light for external rescue signal. This electronic whistle is made of high quality environmentally friendly ABS materials, tasteless and healthy. With a leash, it is suitable for a variety of indoor and outdoor sports. Technical data: Subject: electronic whistle Material: ABS Size: 14*4.3*3.3cm Package Weight: 99g List of packages: 1 * electronic whistle Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.