Dahua, 4MP WiFi Video Doorbell, 4 MP (2560 × 1440)@15 fps, IR 10m, 2.4 GHz Wi-Fi 6, works with the mobile app, Supports max. 256 G Micro SD card, Detects people and vehicles, Two way talk,Supports wall mount installation with multiple types of brackets (optional),USB (5 VDC, 2 A) ,10–24 VDC/14–24 VAC, 1.0 A, IP65.