GF-21 GPS Locator Tracker Real Time Tracking Historical Trac

100% new high quality. Made of high quality, durable, strong and stable materials Remote collector, remote recording, voice backup call, voice recording, high definition silicone microphone, WiFi + lbs + AGPs. Real time tracking, historical track, anti vibration alarm, electronic fence, strong integrated magnetism, various energy-saving methods, low-power alarm, remote switch on and off. Emergency call: in an emergency, press the SOS key to send a call and message to the guardian for help. The mobile device can detect the loss. Two way phone: the address book number to call the user. Anti interference mode: the mobile phone application of the guardian can set the time range without interference and protect the incoming calls of the device. Remote monitoring: a very sensitive microphone that can monitor the surrounding sound in real time in case of emergency. The shutdown and restart functions of the device can be realized by using guardian's mobile phone.