Operation language: English
Operation interface: IR remote control
Video input: 4-ch video input
Video output: Single channel composite video output
Display mode: Single frame/three frame/four frame display
Video standard: NTSC/PAL
Recording mode:automatically recording,detect recording,manual recording
Recording channel:4channels(1-4 channels optional)
Records playback:available
Data storage:support 4G~32GB SD card
Software upgrade: Support SD upgrade
Working voltage: 12V DC