Angel Personal Safety Alarm Keychain – Always have an angel watching out for you or your loved one with this angel wing safety alarm. Draw attention to any crisis. Keychain alarm is small, lightweight, easy to carry and a great self-defense tool for women, men, the elderly and children. The alarm can also be used as a panic alarm or medical alarm. Keychain personal alarm is also ideal for use while walking, running, hiking, biking or traveling. Sound frequency: 90dB