Review on Advanced Wireless Backup Camera System for RV & Truck | IP69 Waterproof, Split Screen Monitor & Rearview Reversing Camera | 7'' Wireless Monitor by Jeffrey Mosqueda

I've been using it for a little over a month. When they work they are amazing, but most of the time the image has so much lag that you can't go back to the trailer without the image freezing or the image disappearing completely. Many times I have had to go out and check my ball to see where it is on the trailer where. I come back and 15 seconds later I still see myself in the picture. I use them on a closed 16ft trailer, 2 side cameras work well, uptime is about 90 percent. The backup camera and the camera installed on my truck work and are used less than 50% of the time. All in all I am very disappointed in my purchase, if they were in the $200 range I might not have been so disappointed. Update after several months of use. Only one of my cameras is working at the moment. The remaining 3 are disabled 80% of the time. I've tried rewiring, running a new wire and ground. Now I'm totally disappointed and can't recommend this product at all.