WER Emergency Personal Alarm Keychain/The Wolf Alarm/Self Defense Electronic Device with 130dB for Kids, Elderly, Women Works Outdoor at Night in Adventurer, Funny Charm for Bag Decoration (2-Pack) Keep Safe: Alarm as loud as 130dB(even louder than a rock concert!) with extended 40 minutes of continuous duration keep you safe in any emergency accidents. Easy To Use: Activate alarm by a simple pulling up of the hand strap, put down the hand strap to the slug and alarm would be off. Suitable for: Students, Joggers, Elderly, Kids, Women, Night Worker. It's also a necessity supply for traveling, hiking and camping. Perfect for emergency/crying for help when in dangerous situation. Portable and Cute: this emergency alarm with its size of 5*8cm, which is very easily attached on Backpack, Belt Loops, Suitcases.etc, you can also use it for bag ornament.