Personal alarm with built-in battery, the alarm is extremely loud and attention-grabbing. It's easy to operate and carry. You'll feel much safer by owning this personal alarm and taking it with you anytime and anywhere. The keychain design allows you to clip the personal alarm to your keys, backpack, bag, purse, belt, etc., providing added safety during travel. The LED flashlight helps illuminate dark areas or assist during sudden power outages. How to use: 1. Pull out the contact pin from the personal alarm device to activate a loud alarm sound. 2. Reinsert the contact pin to stop the alarm. 3. Press the button to turn on the LED flashlight. 4. Release the button to turn off the LED flashlight. To activate the alarm: Pull out the contact pin as indicated in the user manual. To stop the alarm: Reinsert the contact pin into the device. The contact pin serves as the on/off mechanism. Product Specifications: Material: ABS and Metal Volume: 130dB (Approximate) Battery: LR44 x 3 (Included) Notes: 1. The 130dB alarm is extremely loud; do not place it near your ears. 2. When the alarm sound becomes weak or the flashlight dims, unscrew the back cover and replace the batteries with new ones. 3. This personal alarm is not fully waterproof; avoid submersion in water and keep it in a dry environment. 4. This is not a toy; keep it away from children under 3 years old. 5. Avoid prolonged exposure to the alarm sound to prevent potential hearing damage.