V51 A Style IP67 Waterproof 4G LTE 3G 2G GSM Elderly SOS Button Emergency Alarm GPS Tracker For Asia/Europe/Africa/Australia, V51 A Style Option:V51 A Style communication Recording (business card management)

communication Recording (business card management)

3 inches IPS screen

4-slot independent charging

Adjacent channel selectivity (wide band

V51 A Style IP67 Waterproof 4G LTE 3G 2G GSM Elderly SOS Button Emergency Alarm GPS Tracker For Asia/Europe/Africa/Australia, V51 A Style Option:V51 A Style communication Recording (business card management)Feature 1. Real time positioning: query position information and adjust positioning interval, and navigate to find personnel. 2. Historical track: View the movement track of any day within 90 days 3. Fence: GPS fence: Compare the GPS positioning data and judge whether there is an alarm for entering or leaving the fence. WIFI fence: Compare the WIFI hotspots and judge whether there is an alarm in or out of the fence. " 4. Health: Calculate the amount