Technical parameters:
GPS Chipset: SIRF star 3
GSM/GPRS module: Simcom SIM300 or Siemens MC55
Frequency: Tri-band GSM900/1800/1900MHz or 850/900/1800/1900MHz
Sensitivity: -159dBm
Cold start / hot start: 35s / 1s
Lithium battery: 3.7V 800mAh
Specifications:
Dimensions: 5.1 x 4.6 x 1.7 cm