Key Product Features ´SOS´ button in of case emergency Five programmable buttons for one-touch dialing Push button location services Earpiece jack for hands-free mode Backlit LCD, indicating battery power level, network connectivity, numeric pages, call status, date/time and ring/vibrate indicator GSM SIM Card for phone number portability Tri-band for GSM G550: 900/1800/1900 G560: 850/1800/1900 Service Features Via Web access, locates loved ones within feet/meters in about a minute. View location on both street and aerial mapping, to include date/time stamp, lat/long and block address Set breadcrumb schedule for periodic locates View location history E-GPS allows location in many types of wood frame buildings, vehicles, and dense foliage