The HUMUTU Personal Alarm comes with its batteries included. You'll receive the alarm that has a clip that's easy to add to a keychain, bag, or wherever you need it. You can hang it or just keep ...

Personal Safety Alarm Buying Guide The best personal safety alarms, for the most part, are all affordable, and are a small investment that can have a major impact when it comes to safety.

Keychain alarm helps you run the parking meter dash. Gadgetbox By Dan Moren, Macworld JAN 1, 2007 4:00 pm PST. I spend a lot of time popping quarters into parking meters and yet even more time ...