The ICEdot Crash Sensor detects life-threatening impacts and sends an emergency message through your smartphone to someone who can get you medical help. When an incident happens, the ICEdot sends a Bluetooth signal to an app on your smartphone. An alarm will sound on the phone, giving you a chance to stop the distress signal from going out if you're ok. If you don't stop the app, it sends an SMS text message to your pre-specified emergency contacts with your GPS coordinates.