130dB High Decibel Personal Alarm- Loud enough emergency self-defense alarm, often used for school bullying, falls, feeling unsafe, physical threats, medical emergencies, accidents or allergic reactions, etc. Helps prevent kidnapping and abduction. With continuous sound and flashing, the security alarm keychain can attract the attention of nearby people even from 300 yards away, and help can be obtained quickly. USB Charging Function-The personal security alarm is made of rechargeable lithium batteries, which are charged using USB cable, no need to replace the battery, reusable and durable, long battery life. It perfectly replaces the traditional self-defense personal alarm. Easy to Use- The personal security alarm does not require training or skills to operate, there are two ways to use it, in an emergency or when you need help, pull up the self-defense keychain alarm, the personal alarm will sound, plug it in to stop ; Double-clicking the SOS button will also turn on the alarm, long-pressing will stop it. Protect yourself in times of need with a self-defense alarm. More Powerful and Convenient-The self-defense keychains LED emergency flashlight is larger and brighter than traditional security alarms. It is made of environmentally friendly and durable recyclable materials. It has a portable size and can be easily carried around. It can be attached to wallets, backpacks, Keys, belt loops, etc. on. You can even take it on a plane. Perfect Gift-Suitable for everyone, maximize your personal safety and security anytime and anywhere, providing the perfect defense mechanism for students, the elderly, children, women, joggers, night workers, etc.