digital audio intercom system 1.monitor:16.2*10*5cm .camera: 12.5*9. ... .3cm 2.300k Pixel camera. 3,Clear night-viewing apartment digital audio intercom system1.FEATURES 1. Replace conventional door viewer,easy ... 2.4" digital color LCD for monitor; 5. CMOS 300,000 pixel for camera; 6. Clear night-viewing;24 hours monitoring , calling ...