130db self defense alarm girl women security protect alert personal safety scream loud keychain alarms for children

charging function: use type-c charging socket, charging display blue light, after full charge blue light off. low voltage detection function: when the product voltage is low to 3v, the product red light flashes to remind the user that the product needs to be charged in time. alarm function: pull pull ring, product alarm and flashing light. pull the ring into the product, the product salarm and flashing light. led light function: press the side light button, the led light will be long on, press the button again, the led light will blink, press the button once, the light will be turned off..syi