Gf21 Gf09 Gf07 Gsm Mini Car Gps Tracker Real-time Driving Tr

4.Anti-disturbance Mode and Electronic Fence: Once the no-disturbance time range is set through the APP on the guardians cell phone, this voice recorder will shield the voice messages and calls. When you center on device to define an area on the map, it will immediately alarm if the tracker is away from the area. No worries about your safety. 5.Low battery Alarm: When the current power is lower than 20%, the Voice Recorder will send alarm information to you, helping you charge it in time. 6.Other Remote Functions: Find the tracker, alarm, shutdown, restart. These functions of a device can be implemented through the guardian mobile phone’s APP.