#The Echidna is a backpack for extreme hikers, rescue workers, and other people who may spend large amounts of time alone in the wilderness #It includes sensors to detect if the wearer is in danger (temperature, heart rate, fall detection, etc.) #If it detects danger, backpack sets of an alarm, which the wearer has time to turn off in case of false reading #If alarm not turned off in time, Echidna sends out an SOS signal with the wearer's GPS coordinates over radio waves #This way, the wearer can hopefully get any help they need