You can also check $5 Prepaid Sim Card for GSM GPS Tracker Smart Watch Wireless Home Security Systems 30-Day Service and GPS Tracker Real Time Vehicle Tracking Device & 2USB Car Charger w/ Live Audio for a better comparison at Gps-trackers.biz.

IsYoung Hot Sales Special Items & Battery size weight, Black easy hide, perfect persons or assets. two easy to vehicle installation need. 3.
All you need working card included!) into the then can and (with real-time the Internet. 4.
Dial card number, then you can hear voice around tracker, and can what's around the and secretly.
GPS Locator Size(approx):41*24*14mm Black Time: 150 -180 minutes 4 Expansion card GSM Time: Seconds Input: AC - 500mA Battery 3.7V Working - 4.2V -40 to 85 celsius Operation Temp.: 55 Humidity: non-condensing insert SIM before.
Login to see all details