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http://vienthonghainam.unblog.fr/2019/11/18/camera-de-surveillance-cam-camera-ip-wifi-hd-720p-1-mp/
Viễn thông Hải Nam Whatever They Told You About Hikvision 4mp Ip Bullet Camera Specification Is Dead Wrong...And Here's Why It is possible to simply set the mini camera, where you choose and allow you to work