an app for a watch which can provide locations and sound around it, the watch usually is wore on a person who needs to be protected, and the App User can use this app to locate the wearer and hear the sound around when the wearer have dangers.
an app for a watch which can provide locations and sound around it, the watch usually is wore on a person who needs to be protected, and the App User can use this app to locate the wearer and hear the sound around when the wearer have dangers.