Anti Lost Child Safety AlarmKids never feel tired,Website: ... operate, the master unit is for parents, it comes with alarm & melody to indicate the direction & distance of the kid ... their kids, no more hide-and-seek! About the Anti Lost Key Finder:Ultra-thin, portableLow energy usage Bluetooth ... up to 12/24 monthsHow to set up Bluetooth Anti Lost Easykeyfinder1, Download and install the app from Apple ...