140dB Loud Sound: This self-defense keychain alarm can make Loud sound to draw others attention even in a far distance(607 ft away), effectively scaring off attackers. Perfect for emergencies like walking alone at night, traveling, or unexpected threats.

IP44 Waterproof Personal Alarm: Our personal safety alarm is made of high quality ABS material, which is resistant to drop, pressure and high temperature, and has a waterproof rating of IP44. Whether you are running late at night, hiking in the rain or snow, or going out for a camping trip, always have the TECKNET personal safety alarm by your side.

Portable Design: This set of 4-pack security alarm keychains in pink, black, yellow, and blue weighs only 0.057 pounds each, making it lightweight and portable, and can be easily attached to your keys, backpack, purse, or belt. Ideal for students, women, seniors, and travelers - meets TSA security standards for easy access.

Easy To Use: The alarm will be activated when you pulled the contact pin out,and emergency alarm will sound continuously for 1 hour unless unless pin is reinserted to device. No complicated setup—ideal for emergencies when every second counts.

Ultra-long battery life: This personal alarm does not need to be charged and is equipped with high-performance 23A 12V alkaline battery for for extended life! Ensure that you always get reliable protection. No need to replace frequently, worry-free.