Are you always wondering who it is when the door is knocked? It's your honey, your friends, a stranger or even an evildoer? Now we are introducing you a Video Door Phone, and there will not to be so much concern anymore!This Video Door Phone System adopts one to one, one to two and many kinds of matching mode to meet the needs of different villas of customers effectively. Adopting high technology, the security Video Door Intercom provides you with great performance. And it is waterproof and oxidation resistant, which is suitable for most environments. This Phone Intercom System offers many functions, such as monitor, call, door-key, no disturber, indoor call and pictures storage. And Intercom Video Door Phone is adjustable for ring volume, picture brightness, chroma and call. Video Door Intercom will add extra security to your home, suitable for villas, home, offices, institutions such places as the use of units.