Working based on existing GSM/GPRS network and Global Positioning System satellites, this product can locate and monitor any remote targets by SMS, APP and Internet.Features:Built-in 3.7V 5000mAh li-ion battery support standby time.5pcs built-in magnets, compact size with strong powerful magnetic, can be very easily installed.Real time free tracking, GSM/GPS dual mode positioning, positioning accuracy of up to 5m.Electronic fence, over speed, low power alarm, voice monitor.Track the location of the lost or stolen pets, children, the elderly and vehicles.IPX6 waterproof design, no need to worry about the rainy days.Specification:Color: blackNetwork: GSM/GPSGlobal Positioning System sensitivity: -159dBmGlobal Positioning System accuracy: 5mInput: 5V-1ABattery: 3.7V 5000mAh Lithium BatteryHumidity: 5%-95% non-condensingItem size: 90 * 72 * 22mm / 3.5 * 2.8 * 0.9inItem weight: 168g / 5.9ouncePackage size: 130 * 100 * 60mm / 5.1 * 3.9 * 2.4inPackage weight: 313g / 11.0ouncePacking List:1 * Locator1 * Storage Bag1 * Power Cable1 * User Manual