... outdoor unit,3.5" indoor monitor,factory good price video door phone,color video doorphone,wireless video door phone,hands free ... outdoor unit,3.5" indoor monitor,factory good priceFACTORY ... W.(KG) 2.3KGS 11.6KGSN.W.(KG) 2.1KGS 10.7KGS20'FT2395PCS40'FT4835PCS 2.4GHz Wireless Video Door Phone System Color Video Door Phone ...