GT06 vehicle GPS tracker has web-based GPS tracking system, GSM quad-band frequency, 2G GSM SIM card support, high sensitivity, real-time monitoring via SMS / GPRS, original password recover option, excessive speed alarm, ACC anti-theft alarm, SOS alarm, real-time monitoring voice, two-way radio call, built-in backup battery to achieve power failure alarm, device turn the lights into sleep mode after 5 minutes.