Defender Digital Wireless DVR Security System with 7 Inch LCD Monitor, SD Card Recording and 2 Long Range Night Vision Cameras (Black) 2 Way Intercom Feature SD Card Recording 2 Long Range Night Vision Cameras Digital Wireless Technology - The Phoenix 301-Series comes equipped with Digital Wireless Technology that ensures there is no messy wiring involved when setting the system up. SD Card Recording - This system includes a 2GB SD card that can capture up to 350 minutes of footage and audio. Long Range Night Vision - The camera comes equipped with advanced night vision and 18 infrared (IR) LEDs that let you see clearly in the dark, up to 40ft away! 3 Way Intercom Feature - Communicate with visitors or employees from a distance using the 2 way intercom. The monitor and camera have a built-in microphone 7 LCD Monitor - Review your footage easily on the 7 LCD monitor. se the screen saver feature, which displays your choice of one of 5 images on screen, to fit in with the surrounding decor.