Features: Stay connection and secure with the G69 4G LTE locator bracelets, featuring SOS emergencies calling, IP67 waterproof design, and 90 day location history for reliabled elderly safety monitoring. Equipped with multi mode positioning ( +AGPS+WiFi), customizable electronic fences, and activity tracking functions including step counting and calorie burn monitoring. Ideal for caregivers managing seniors, children, or individuals requiring real time location updates and emergencies response capabilities. Monitor outdoor activities, daily routines, or travel routes through precise real time tracking and historical movement data visualization. This lightweight plastic wristband combines 850mAh long lasting battery performances with intuitive app controls for seamless family safety management across multiple scenarios. Specifications: Component:Plastic Size: Approx. 46x18x33mm/1.81x0.7x1.29inch Special functions: measuring body temperature, heart rate, steps, calories, exercise distance, active time, inactive time Battery: 3.7V 850mAh 4G antenna: PIFA antenna Standby time: determined by battery capacity and connection methods Working voltages: 3.5-4.2V (3.4V low power automatic shutdown) Charging current: charging 5V 500mAh (current can be set according to different battery capacities) Package Includes: 1 Set locator Wristband note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.