about this project 130dB Personal Alarm ClockThis safe personal alarm clock can emit a piercing 130dB alarm sound. This personal alert can help you call for help when you are in a theft, robbery, rape or any other dangerous situation. Pull out the pin to alarm, the sound will gradually become louder to attract the attention of others. Choose this safe personal alarm clock, it will be your good helper when you are in trouble or need help. EASY TO USE AND SUITABLE FOR ALL AGESUsing this safe and reliable personal alarm clock is easy, you can pull out the pin to alarm, then plug it back in to turn off the personal alarm clock. This personal alarm with led light is suitable for people of all ages, such as students, elderly, children, women, night workers, etc. Portable Self-Defense KeychainIt is not only a personal alarm, but also a keychain. Mini design for easy storage and portability. The keychain personal alarm clock can be hung on keys, backpacks, belt loops, cases, women's bags, school bags, suitcases and more. Personal Alarm Clock with LED FlashlightYou can also use this personal alarm clock with LED light for night running, traveling abroad, hiking, camping, horse riding and other outdoor activities. You can also use this personal security siren as emergency lighting, the safe personal siren lasts up to 20 hours. Great gift and durableNo matter when and where, the safety of your family is our top priority. This personal alarm for self-defense can be gifted to your family, lover, friends, elderly and children. Made of durable ABS material, this personal alarm clock can withstand drops. If you have any questions, please feel free to contact us.