effe pensiero Whistle Keychain, Key Ring, Keychain, Made in Japan, Animal Accessory, Disaster Preparedness Item, Crime Prevention, Amulet, Disaster

Sound Creation: While the 2kHz to 5kHz range is easily audible to the human ear, the 4kHz high-frequency range resonates far away, even from under rubble. The 12kHz, 16kHz, and 20kHz sounds are also carefully layered to ensure they are audible to rescue dogs. A five-second average noise measurement measured the sound at over 85dB. (Measured under the guidance of a factory testing center.) Material: Cellulose acetate (a resin derived from plants). Manufactured in accordance with the Food Sanitation Act, it is safe for children to lick. The nozzle position varies depending on the animal, so try blowing into it a few times to practice. If water gets inside, shake it to remove it.