Super Powerful Siren -130dB The mini siren can protect you when you are in danger or need help. Strong sirens have a strong impact and can draw attention even from a distance. If you are walking alone at night and you meet an evil person following you, you can set the alarm clock to ask for help. The alarm clock is loud, please don't put it to your ears. Waterproof & USB Rechargeable Design - The personal alarm clock has a built-in rechargeable battery. The red light is always on when charging, and the red light is off when charging is complete. Charging time is only 30 minutes and it is durable. The personal alarm is waterproof to IP44, fears neither wind nor rain and will accompany you 24 hours a day. Emergency LED Flashlight: Built-in LED flashlight, which can provide quick illumination when walking in the dark, and can trigger an alarm to prevent you from getting lost while driving, or use the function of flashlight LED to flash frequently to attract others' attention. Get dressed, seek help in time, and protect your life. Lightweight and Portable: The dual buckle design can be hung on backpacks, satchels, purses, belt loops, suitcases or keychains, providing perfect self-protection features for students, women, night runners and night workers. When you need to sound the siren, simply double-press the SOS button quickly or pull the siren tab. Best Gift Choice: The alarm clock is individually wrapped, and the personal alarm clock is the most intimate gift for older children, friends and family. Includes 1 * Alarm, 1 * USB Data Cable