Let’s say, heaven forbid, you’ve fallen, knocked yourself unconscious, and you can’t get up — nor tell the emergency workers that you’re allergic to penicillin. MyVoice ID to the rescue. Just push a button on this pager-size device to record your vital medical information, your doctor’s phone number, even your family’s contact info. In a medical emergency, EMTs can listen, learn, and make sure you get the right care. $40. www.myvoiceid.org