VT-64 is a special waterproof (IP67) tracker with bluetooth connectivity, internal high gain GPRS and GSM antennas and integrated high capacity backup battery. Device is designed to work longer without power supply. VT-64 with Li Ion battery can work up to 3 days in power saving mode. It is perfectly suitable for agriculture, delivery, refrigerated transport, trailers tracking, security & emergency services and even more. 6-30V power supply makes VT-64 suitable for motorbikes and water transport.