e-whistle Electronic Whistle | for Hiking, Camping, Self Defence, Sports Activity | Super Loud Up to 120dB SUPER LOUD  Up to 120dB. The e-whistle can definitely attract others attention and get emergency assistance when you are in need. ONE CLICK - The electronic whistle is very simple to use. When in an emergency, you may be out of breath, just push the button on the e-whistle for help. SANITARY - Switch to our e-whistle, it's hand operated instead of mouth blown, sanitary for multiple users. IMPORTED  Made in Taiwan for quality assurance. This product is also CE certified and RoHS compliant. Meets ISO14000 requirement as well. Guarantee: we offer a 100% money back guarantee if you are not satisfied, without any questions asked. *4 LR44 batteries required (NOT INCLUDED)