Mainly describesConnection MethodWireless,Kit ConfigurationOne to Two video doorphone,Additional featuresPhotographed,Outdoor UnitCamera Sensor typeCMOS,MaterialPlastic,Indoor UnitDisplay Screen Size (inch)7,Answering modeHandheld,MountingWall Mounting,What's in the boxWhat's in the boxScrew package,Users manual,Power supply,2*Indoor Unit,1*Outdoor Unit,..