Specification:
Category: Personal Alarm
Size: 6 x 4.5 x 2 cm (L x W x T)
Battery: 12V 23A (Included)
Weight: About 60 g

Features:
Lightweight and portable, easy to take for outdoors.
Pulling out top keychain, loud alarm rings to cause people stention for help.
More fits to girl, female, children, people in danger for self safety protection.