GSM GPRS GPS Positioning Tracker Real Time Positioning SMS APP Tracking Sound Al

1. GSM quad-band frequency for globe use. 
2. Real-time tracking location and previous track playback. 
3. Real-time tracking location by SMS or computer network. 
4. Support tracking by iOS / Android app and remote control. 
5. Built a vibration sensor, the realization of vehicle vibration alarm. 
6. Sound alert function: when the sound around tracker is higher than 60dB for a long time, it would automatically call the phone number that had been set up. 
7. GPS + LBS positioning, accurate tracking. 
8. Sound monitoring: you can monitor sound around this device by the phone call. 
9. A built-in strong magnet inside can be attached to metal directly, more convenient to use.