KKmoon Digital Wireless DVR Security System with 7 Inch LCD Monitor SD Card Recording and 4 Long Range Night Vision Cameras Includes four digital wireless cameras with IR LEDs for best vibrant color picture and night vision.7 inch high resolution TFT digital led display. Support up to 32 GB SD card.Support 24hours/7 days non-stop overwrite recording.Multiple recording modes: manual, schedule and motion activated. Supports synchronous audio recording and video recording.Supports the NTSC / PAL video output.Support audio output.Weatherproof CMOS color cameras for indoor and outdoor application. 6-15 meter night vision range.Digital wireless long range transmission.Do-it-yourself (D.I.Y) easy to setup and use 2.4GHz digital wireless recording system. Support system information displayed on the screen (OSD) function.Total digital wireless, no interferences, no privacy leak.Widely used as CCTV system for the usage of car park,office security and garden guard,etc.