Real-time GPS tracker for elderly with -159dBm high sensitivity1、High Performance: The black item locator features GSM and GPS dual positioning mode, realizing real time free tracking and the positioning accuracy of up to 5 meters. 2、Long Battery Life: The GPS item locator comes with built‑in 5000mAh ultra large capacity battery with super long standby time, charged once can standby for 90 days. 3、Excellent Function: The high grade GPS locator is designed with the function of electronic fence, over speed, low power alarm, voice monitor, more smarter to use. 4、Purpose: The GPS finder can track the location of the lost or stolen pets, children, the elderly and vehicles. Just call the tracker and you will receive an instant location map to your devices of exactly where the tracker is located. 5、IPX6 Waterproof: The GPS tracking device is specially designed with IPX6 waterproof performance, no need to worry about the harsh using environment such as rainy days.