The world’s smallest and most reliable 4 channel AHD mobile DVR. Connect up to 4 cameras. Integrated GPS, 3-Axis G-shock sensor, built-in Mic, two 12V alarm input triggers, one 5v alarm output, remote control with emergency panic button, video-output cable for connecting LCD display. Wired external microphone and Cellular LTE integrated radio included.. PC Analysis Software. 128GB SD storage capacity (no SD card included).