SVAT VISS3000 Handsfree Video Intercom System w/ 32 Image Memory (Black & White) Full two way audio communication 32 Image memory stores pictures of visitors Monitor is wall mountable or can be laid flat on a counter and has 4 flat CRT screen. Camera's 5 infrared LEDs lets you see in the dark Max Wiring distance: 90ft using 0.5mm cable, 160ft using 0.65mm cable