Ultra-Loud Siren: This 130dB mini siren provides essential protection in dangerous situations or when you need help. Its powerful sound can attract attention even from a distance.Waterproof & USB Rechargeable: Features a built-in rechargeable battery. A red light indicates charging, turning off when complete. A quick 30-minute charge provides long-lasting power. IP44 waterproof rating ensures reliable protection, rain or shine.Emergency LED Flashlight: The integrated LED flashlight offers quick illumination in the dark and can be used as a signal to prevent getting lost. Use the flashing LED function to attract attention and seek help quickly.Lightweight & Portable: The buckle design easily attaches to backpacks, school bags, purses, belt loops, suitcases, or keychains. Perfect self-defense for students, women, night runners, and night workers. Simply prthe SOS button twice quickly or pull the siren tab to activate.Perfect Gift Choice: Each alarm is individually packaged, making it a thoughtful and practical gift for children, friends, and family.