"MAXIMUS G 819 IS A DUAL BAND GSM GEOLOCATION SYSTEM THAT OPERATES IN THE RADIO BANDS 850MHZ AND 1900MHZ. INCLUDES MAXIMUS G 819, RUGGEDIZED LAPTOP, EXTERNAL AC/DC POWER SUPPLY AND CABLES, SOFTWARE INSTALL CDS, USB AND ETHERNET CABLES, OMNI-DIRECTIONAL CELLULAR/PCS BAND ANTENNAS WITH MAGNETIC MOUNT AND COAXIAL CABLE, 14 INCH LOW VISIBILITY DF ANTENNA POD, 12V/DC TO 110V/AC INVERTER, BATTERY CABLES, GPS ANTENNAS, SAGEM OT468 WITH SPARE BATTERY, AND A HARD CASE."