Feature: 1. Loud sound and flashing light warning: When in danger or emergency, unplug the plug, it will immediately sound 130dB alarm sound, loud sound, and the LED light will flash. 2. LED lighting: Personal alarm has LED lighting function, which is convenient for you to walk alone at night. Click to toggle the mode, always on-flashing-off. 3. Self protection: This smart self protection gadget is especially suitable for girls to go home at night to avoid being tailgated, children in distress, and elderly people falling or falling ill. 4. USB C rechargeable: The product is built-in 3.7V 130mAh battery, which can be used continuously for a period of time. Type-C charging port, it supports charging of USB devices such as power banks and computers. 5. Mini and portable: The alarm is about 100 x 31 x 13.5mm/3.94 x 1.22 x 0.53inch(L x W x H), and equipped with a carabiner, you can hang it on belt, bags, keys, school bags, etc. Specifications: Color: White, black Material: ABS Power by: Built-in 3.7V 130mAh battery Volume: 130dB Alarm duration: About 70 minutes Lighting time: About 240 minutes LED flashing time: About 300 minutes Size: About 100 x 31 x 13.5mm/3.94 x 1.22 x 0.53inch(L x W x H) Package Includes: 1pc x Personal alarm 1pc x Carabiner 1pc x Charging cable Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement. Instructions for use: 1. Pull out the latch in case of danger, it will sound an alarm. 2. After the danger is removed, insert the latch back to end the alarm. 3. LED lighting function: click to switch mode, always on-flash-off. 4. Charging function: the red light is always on when charging, and the green light is always on when fully charged. 5. Low battery reminder: When the battery of the alarm is too low, the LED light flashes three times and makes a beeping sound.