WHILE DRIVING ON A secluded mountain road, you suddenly discover you’re lost. Someone falls and help is nowhere in sight. These are unsettling experiences anywhere, but on an island or in another country, it can be downright scary. Now you can ease the worry with the Mobile Defender, a 2-ounce mobile emergency pendant that automatically contacts first responders, family, and friends. It fits in a pocket and works well for traveling seniors or medical patients.