UNIWA Hand Whistle Electronic Whistle- Adjustable High Volume Handheld Whistle with Lanyard- 3 Volume and 3 Tone Electric Whistle for Coaches Referee Official P.E Teacher- with 3 AAA Batteries

UNIWA ELECTRONIC WHISTLE - ADJUSTABLE 3 VOLUME 3 TONE THE PACKAGE INCLUDES 1 x Electronic Whistle 3 x AAA Batteries. 1 x Screwdriver 1 x Drawstring Pouch 2021 NEW UPGRADE: ELECTRONIC WHISTLE THAT CAN CONTROL the VOLUME 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. MULTIFUNCTION ELECTRONIC WHISTLE 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. 3 VOLUME ELECTRONIC WHISTLE Upgrade the high, middle and low volume levels to meet the needs of different occasions. In the narrow space, you can turn down the volume to avoid discomfort to your ears; in the open outdoor, you can turn up the volume so that the sound can be heard. 3 TONE ELECTRONIC WHISTLE Three different whistle sound effects meet the needs. You can adjust the sound according to the size of the space or the occasion. Also suitable for boatswain whistle, windstorm whistle, rescue whistle, self-defense emergency whistle. 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 an open area, the sound of an electronic whistle can easily attract the attention. REPLACEABLE BATTERY We provide individually packaged batteries. If the sound is abnormal, please replace them in time. How to install: 1. Open the cover on the back of the electronic whistle 2. Use a screwdriver to pry open the old battery and contact the negative pole of the new battery with the spring