<b>UNIWA HANDHELD ELECTRONIC WHISTLE WITH LANYARD</b> <br> <br> <br> <b>THE PACKAGE INCLUDES</b> <br> 1 x Electronic whistle <b><br>4 x Cr2032 Lithium batteries. <br> <br> <b>LET THE LOUD VOICE BE HEARD</b> <br> High pitched powerful voice maker, can provide up to 120-150 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. <br> <br> <b>MULTIFUNCTION ELECTRONIC WHISTLE</b> <br> High-volume, clear, powerful, and attention-grabbing electronic whistle-suitable for coaches, referees, physical education teachers, training animals and pets, outdoor camping, emergency help, etc. <br> <br> <b>THREE-TONE ELECTRONIC WHISTLE</b> <br> Three different whistle sound effects meet the needs. You can adjust the volume according to the size of the space or the occasion. Also suitable for boatswain whistle, windstorm whistle, rescue whistle, self-defense emergency whistle. <br> <br> <b>RUGGED PROFESSIONAL ELECTRONIC WHISTLE</b> <br> 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 an open area, the sound of an electronic whistle can easily attract the attention. <br> <br> <b>REPLACEABLE BATTERY</b> <br> We provide individually packaged batteries. If the sound is abnormal, please replace them in time. How to install: The positive side facing up and the negative side facing down. <br> <br> <b>HIGH-QUALITY CUSTOMER SERVICE TEAM</b> <br> If you have any quality problems with UINWA electronic whistle, please contact us in time. We provide 24 months after-sales service. Please do not hesitate to contact us for any questions. We will reply to you within 12 hours.