Quad band GPS Tracker GT02 GF07 Sistema Antifurto Auto Veicolo GSM GPRS Tracking
GPRS：Class 12，TCP/IP. GSM Frequencies：850/900/1800/1900 MHz. GSM Band: 850/900/1800/1900Mhz. The red line is positive (DC +), joint battery anode, black line for negative level (GND), joint battery cathode.