【140 dB Siren】This personal alarm is designed to help you call for help in times of danger. The 140 dB siren is loud enough and lasts for 60 minutes, enough to attract attention and deter attackers. The siren can be heard up to 607 feet (185 meters) away, protecting you when you're in danger or need help. 【Durable ABS Material】Made from high-quality, durable ABS material, this TECKNET personal alarm features excellent impact resistance. It is IP44-rated for water and rain resistance, offering reliable performance in various everyday situations. 【Portable & Discreet Design】This mini personal alarm keychain features a lightweight and compact design, weighing only 26g. It can be attached to a backpack, handbag, keys, or pocket, blending in as a stylish accessory while remaining easy to carry wherever you go. 【Easy to Use】Simply pull out the safety pin to activate the personal alarm and reinsert it to stop the sound. The alarm emits a loud siren to attract attention and alert people nearby. Compact and portable, it is suitable for students, children, the elderly, night runners, and anyone who wants a convenient alert device. 【Excellent Customer Service】 TECKNET is committed to providing customers with a pleasant purchasing experience and dependable assistance. Our team will reply promptly, usually within 24 hours. Package Contents: Alarm ×2, Instruction Manual ×1, Packing Box ×1, Manufacturer: TECKNET