I thought these cameras were "dual antennas" but they aren't. I've had good luck with this brand in the past, so I continued anyway. I had 7 out of 8 cameras installed and looking through the dash cam before realizing the 6GB hard drive had failed and was not recording. This was after I drilled holes in my siding and house to install some cameras. One camera buzzed loudly and the other had its power cord severed. By the way, the large ethernet port also has to go through any holes made in your house, so you'll have to make the holes bigger than seems necessary. The one with the Ethernet port cut off did not connect. The documentation does not mention the importance of the Ethernet port. The Oossxx customer service (technical support) was a joke. Nobody answers calls. They called me and hung up, I guess they could say they "contacted". After several emails they confirmed all my items were broken but then sent me to Revain warranty service. Revain gave me the option to refund $130. Not wanting to leave holes in the walls of my house, I took the money. Weary. This is a rebrand of "Salient". I would recommend buying the Salient brand.
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