Electronics Whistle For Coach Three Tone High Volume Loud Electronic Whistle Lanyard Handheld Whistle For Refree Teacher Outdoor Camping Hiking Self Emergency

Let The Loud Voice Be Heard : High pitched powerful voice can provide up to 150-150 DB sound power.In the flu season avoid using the traditional whistle that needs to be blown with your mouth which will be more important to your health and hygiene, Multifunctional Electronic Whistle : High volume clear powerful and attention grabbing electronic whistle suitable for coaches refrees physical education teachers training animals and pets outdoor camping emergency helping etc, Three Tone Electronic Whistle : Three different whistle sound effects meet the need. You can adjust the volume according to the size of the space or the occasion. Also suitable for boatswim whistle windstrom whistle rescue whistle self defense etc, Rugged Professional Electronic Whistle : Safe and non toxic high quality ABS material humanized design allows you to get a good sense of experience in outdoor activities. Whether in a noisy environment or in open area can easily attract, Replaceable Battery : We provide individually packet batteries. If the souns is abnormal please replace them in time. The positive side facing up and negative side facing down