1.2.8"door viewer 2.touch pad screen 3.SD card memory 4. ... touch pad, color, monitoring, door eye piece and taking picture once there is calling. Specifications Main function peephole viewer Color white, champagne ... 2 AA batteries Resolution 320*240Ring:dingdong tone Package Contents· Digital peephole viewer · Base flange · Peephole Product photos 2.8in digital door viewer with european style