You know how establishments have hidden emergency buttons to call the police? There's a new device called the ECHO Urgent Messenger that's something like that, except it's a tiny one-button emergency phone that you can attach to a keychain, so you can call for help whenever needed. According to the device's Indiegogo page (where its creators are trying to raise $5,000 to start production), ECHO sends a message to the company's urgent care staff and to all your authorized contacts when you press the emergency button. Yes, you can include anyone you want, whether you have them as a phone or email contact or even as a Facebook friend. This message will apparently contain your location within five feet, as determined by GPS, GLONASS and cell tower triangulation.