... digital camera (2.5" color screem) 4 features:built-in digital camera, color display, intercom & chimes video door viewer with digital camera (2.5" color screem ... :1. 4-in-1 security door viewer,built-in digital camera, color display, intercom & chimes2. User-friendly design,so simple to use ... H) 49 x 36.7 mm (2.4 in diagonal) Camera Color CMOS sensor, 0.3M pixel Built-in Memory Min 32M ...