Xplorer advances the state of Personal Location Services by incorporating assisted GPS for enhanced indoor accuracy, and GTXC's "set-it-and-forget-it" Dual GeoFencing™ feature, which allows perimeters of either safe zones (green) or un-safe zones (red) to be preset by caretakers, who will receive cell phone alerts if a perimeter is breached by the wearer.  Another key feature is the long-lasting proprietary intelligent power source.  It can last days before requiring a recharge and transmit its signal strength over the air, which enables a guardian not only to track a loved one but also track the performance and status of the device.