Real Time Mini GMS/GPS/GPRS Car Tracker(4-Frequency) New version TK106 DIM 9.7cmx7.1cmx2.6cm;Weight 170g;Network GSM/GPRS;Band 850/900/1800/1900Mhz GPS sensitivity -159dBm;GPS accuracy 5m; GPS start time Cold status 45s Warm status 35s Hot status 1s Car power supply 12 V -24V Back up battery Chargeable 3.7V 500mAh Li-ion battery