eature 1: Support 3G WCDMA/ Compatible with 2G, all frequency bands are universal;
Feature function 2: Add intelligent positioning mode;
Feature function 3: No installation and easy operation, one type of multi-purpose, wide application range;
Featured function 4: The newly upgraded APP is set to work when the card is turned on;
Feature 5: Intelligent power saving and flow saving;
Feature 6: Newly added SOS alarm, health pedometer function;