Feature :
• "Door Camera" button to answer the call. 
• The video with the audio alert automatically. 
• Mini Color Door Camera with CCD camera module  
• Built-in number keys and function key 

Specification :
• Size: 120 x 129 x 39 (mm:W x H)
• Image sensor: 1/3" Color CCD
• Power: DC 12V 2A
• Power consumption: 1.8W