Crash Sensor is a smart device for people who love adventure & want to enjoy it all alone. Adventure means bike riding, ice skating or cycling etc. Just put on this sensor in your helmet & go on races & enjoy. This crash sensor in emergency cases will notify your emergency contacts & send GPS coordinates so that they can rescue you. Crash Sensor comes with helmet mounting clip, ties & USB Charging cable. The battery of this device is rechargeable and along with sending notification to your contacts, it also forces the phone to sound an alarm. So, now you can enjoy long adventure time without worrying of being alone because your loved ones will always be notified in case of any emergency situation . The Crash Sensor gadget costs around 100$.