Completely programmable! Internal storage offering over 17,000 readings if the GSM signal is lost for sending back all data later, GSM modem emulation, GPS NMEA output for navigation, bidirectional vocal communication, Spying functions, GPS 20 chanels with wireless GSM network SMS and GPRS, configuration by SMS or with the GPS software GPS, 6 buttons with 4 programmable functions each one, programmable sounds and ringings, 10 Geofence zones all scheduling possibilities, advance real time tracking over Internet, intelligent algorithm of acquisition, intelligent data compression algorithm to save on transmissions, Work in power saving, periodical and alarm modes, 2 low level battery warning, lithium ion polymer internal battery with charge controller, LED status, controlled consumption, autonomy of 336 hours in standby mode (2 ma), 120 hours with 60 mins acquisitions intervals and about 6 hours always on (360 ma), easy to use, excellent concept and design and more!