ABOUT 130 dB, LOUD ENOUGH TO GET ATTENTION: With ear-piercing sound to draw attentions even 300 yards away when youre in danger. Up to 50 mins of continuous sound to ensure emergency use. It is sure that bystanders will turn around and the person or animal that caused you to activate this safe personal alarm will be confused or scared, which will give you vital time to run away. Perfect for situations like travel alone or just want an extra level of protection when walking home at night. 2 WAYS TO IMMEDIATELY ACTIVATE: To get the sound going, all you have to do is pull the pin on the keychain itself or press the safesound personal alarm button twice in a row. Either option will cause this small, innocuous personal safety alarm to suddenly emit a raucous blare that will deafen anyone in the immediate vicinity. and if you want it to stop you can push the pin back in or long press the button to shut it off. Easy to use and doesn't go off on accident like some others. CONVENIENT USB RECHARGEABLE DESIGN: This self defense security alarm is made by rechargeable lithium battery. No need to replace the battery, USB rechargeable makes the alarm more efficient and convenient. Charging time is only 30mins. Red light when charging, red light off when full charge. 1-year standby time. PRACTICAL LED EMERGENCY FLASHLIGHT: With built-in mini LED flashlight, this safe sound personal alarm keychain keeps your safer on a late night dog walk or when unlocking your front door late at night. The SOS MODE can locate your place more quickly especially when it accompanied by siren. The steady light mode can light your way in darkness. Simply slide the button on the side to turn it on. Then slide it back to turn it off.COMPACT & HANDY ALARM KEYCHAIN: This safety alarm keychain has a portable size for easy storage and carrying, small and smooth enough to fit nicely into the palm of a hand. It can be attached to leash or a handbag, backpacks, school bags, keys, dog belts, etc.; It also can be brought onboard a plane, perfect for students, joggers, elders, kids, women, night workers.