Baby monitor main feature: LONG RANGELong range up to 960 feet (OPEN SPACE) and OUT-OF-RANGE warning4.3 INCH LCD SCREENAdopting 4.3" large size design, easy to operate, no need to download APP, no need to use WiFi, you can see your cute baby clearly and vividly on the screen when you turn on the machineMULTI-CAMERA EXPANDABILITYPair up to four cameras (2 supplied) to keep an eye on additional rooms from the same parent unitTWO-WAY TALK-BACKComfort your baby with the sound of your own voice by using the two-way communicationAUTO INFRARED NIGHT VISION & NIGHT LIGHTRest assured knowing you'll see your baby day and night and you can also activate remotely a comforting glow in baby's roomProduct Specification:Product Name: Baby MonitorPixel: 1080PType: Video and AudioIntercom : Built-in Microphone / Speaker PTZ angle: Horizontal PTZ 360°; Vertical PTZ 120°Material: PVCFunctions: anti-noise, 2-way audio, night vision, Built-in Microphone/Speaker, Alarm detection, alarm notification