Product DescriptionED-525B-WB Dual Camera Video Doorbell . Supports mechanical chime and wireless chime.. Supports connection to a Uniview NVR for live view, playback, and alarm search.. Supports reporting motion detection alarms, human body detection alarms, and package detection alarms to UNV-Link and NVR.. 3 MP + 2 MP dual cameras: The main camera for observing visitors, and the sub camera for monitoring the ground in front of the door, providing a wider view.. Supports noise suppression.. Supports true HDR and WDR, capturing clearer images in backlit scenes.. Supports calling the UNV-Link app, allows you to answer visitor calls anytime, anywhere using the app.. Supports Sub-1GHz wireless chime.. Supports dual-band Wi-Fi (2.4 GHz and 5 GHz) and Wi-Fi 6, faster video streaming and real-time monitoring.. Supports network connection through Bluetooth, quick and simple.. Built-in 8 GB eMMC storage, no extra storage costs necessary.