*Lightweight, compact design for easy carrying. *Clip to your handbag, backpack or use as a keyring to your wallet's zipper,cellphone's strap. *Perfect for students, joggers, elderly, disabled, night shift workers, people who live alone. *Protect you out of risk when you encounter in danger surrounding or meet some bad man. *90 DB loudness can attract other people's attention enough

Size: 6cm x 3cm weight:88g Material: ABS Powered by button batteries Sound Frequency:About 90dB Color: Blue/Pink Usage: Pull out alarm rope and it will ring