It Supports GPS+LBS+WiFi Triple Positioning.You Can Real Time Track your Kids Via Google Map by the APP on your Mobile Phon
This Watch GPS Tracker Need Work With a 4G Sim Card. We Suggest you T-Mobile Sim Card.
Support One-Key Calling and Voice Monitoring,with Call Button and Two Way Talk function,Geo-Fence,History Route Playback.
No Monthly Fee for Free Web tracking and Android IOS APP Tracking.
This Watch Tracker Suits For Kids Around 3-17 Years Old,The Adult and The Elder.