"This personal safety alarm is made of ABS and 4pcs AG3 button cell.
When you are in danger or want to ask for help, you only need to pull out the pin and you can send out an alarm up to 120 db. While plug in keychain to remove alarm, And it is also a useful LED flashlight. Its With the scientific design and key chain, you can connect to any place, such as school bags, wallets and keys. Suitable for the elderly, students, explorers, etc. 3 3/16""L x 15/16""W x 9/16""H"