... 3AA batteries(Recommend energy alkaline batteries) SED digital door peephole viewerModelFeaturesSED-DPV-10081. New design digital door viewer with ... function digital peephole viewer with Auto photo-shooting and doorbell function2. TFT LCD Screen size: 2.8inch3. Camera sensor: 300 ... 55mm11. Package include: 1x viewer, 1x Base flange, 1x peephole camera, 2x brass tubes, 1x tightening tool, 1x manual 2012 ...