XREXS Electronic Whistle, 3-Tone Whistle with Lanyard

[LOUD ENOUGH AND 3 ADJUSTABLE TONES] --- The electronic whistle is loud enough to cut through all the noise and be heard. 3 tones can be adjustable, it is a nice change over normal whistles. You can adjust the tone as needed, not only in small spaces, but also in open spaces. Please do not point the speaker at the person's ear to avoid hurting the eardrum.
[CLEAN, HYGIENIC, NO NEED TO WORRY ABOUT GERMS] --- The traditional whistle requires you to blow with your mouth. Can you imagine how many bacteria when you use a same whistle again and again? Even if you clean the whistle frequently. So from now, use electronic whistle, control by hand, hygienic, easy to clean, and protect yourself from germs.
[WIDELY APPLICATION OF ELECTRONIC WHISTLE] --- The electronic whistle has all common whistle functions, such as sports training, ball coaches, training pets, emergency, outdoor activities, archery instruction,firearms instructors etc., three adjustable tones, high decibel, sound penetr