GF21GPS child tracker

Feature: Made of high-quality material, durable, firm and stable for us to use. Remote pickup, remote recording, voice-activated callback, voice-activated recording, high-definition silicon microphone WIFI+LBS+AGPS positioning. Real-time tracking, historical track, vibration burglar alarm, electronic fence, built-in strong magnetic, multiple power-saving modes, low-power alarm , remote switch machine. SOS Call for Rescue: In case of emergency, press the SOS key, that is, to send a call and information to the guardian for help. Device Loss Can be found by Mobile App.  Two-way Call: Address Book Number Calls with Users. Class anti-interference mode: set the non-interference time range through the guardian's mobile phone APP, and shield the incoming calls from the equipment. Remote monitoring: a highly sensitive microphone that monitors the surrounding sound in real time in case of an emergency. Device shutdown and restart function can be realized by guardian's m