KDB700 wireless video door phone, 7 inch TFT screen the indoor battery is 4000mah and outdoor battery is 3400mah, supports 2 outdoor cameras and three indoor monitors max. One indoor monitor could talk to another monitor, this is very different and  special design compares to other door phones.The main function is doorbell, intercom, monitor, remote unlock, motion detection, take and save videos and photos in TF card.outdoor camera, with IP55 waterproof, could work with 9-16V AC/DC power supply, with motion sensor of max. 3 meters detection distance and clear night vision. 

specification:

Battery 4000mah

night vision 

motion sensor 

300.000 pixels

remote unlock 

IP55 waterproof 

7inch TFT screen 

Two-way intercom

300 meters wireless 

3 monitors extendable 

picture&video recording