The Safety 1st High-Def Color Digital Video Baby Monitor is technology at it’s finest, always providing a 100% clear connection. Its state of the art wide band audio clarity ensures no interference or static, and guaranteed privacy while monitoring. DataLock technology means no loss of video picture or sound. Indoor/outdoor range is 650+ feet. It has a remote digital pan and zoom on the camera which parents love. The baby unit is battery operated or can run on AC power. Top Digital Baby Monitor Review Of Safety 1st HD Digital Video Baby Monitor