KDL Home 7" RFID Video Doorbell Intercom Door Phone System 3 Monitors with 1 IR Camera Night Vision 800x480 High Resolution for Multi Apartments/Families

• 1, Outdoor Unit: Support to open door with RFID cards. With three call button, each button can control a monitor independently. Two way audio between camera and monitors. But the monitors cannot communicate with each other.
• 2, Indoor Unit: 7” LCD colorful LCD screen, with 25 chord ringtones, one key unlock function, with mute mode.
• 3, Night Vision: IR night vision, providing clear vision of visitors even in the darkness of night.
• 4, Function: Support two-way audio and ringback function; Support hands-free intercom and monitoring; Support to adjust the volume of the ring.
• 5, Applications: Wired connection stability clear vision for home security, can be used for multi apartments, especially suitable for low-rise buildings, don't need to connect to internet!

Night vision: IR night vision provides a clear view of visitors even in the darkness of the night. Function: Supports two-way audio and reminder function. Support hands-free intercom and monitoring. Stand to adjust the volume of the ringtone.