1.H.264 3G WIFI GPS D1 car black box 2.1pcs 1Tb HDD ... .0Vp-p, 75ΩDual streamSupportOSDTime & date, vehicle ID, GPS info, etc.compression H.264 ; high performance processorVideo frame ... (Option),Support built-in GPS module with geographic coordinate, speed, information, etcG-sensor Built-in G-SensorSystem upgradeSupport SD card ... are subject to change without prior notice. 3G GPS WIFI Car Black Box