Review on 🚗 BW 2.4G Wireless Car License Plate Mount Rear View Backup Camera with Night Vision, 7 IR LEDs, Transmitter & Receiver (Waterproof Ip67, Color CMOS, 135 Degree Viewing Angle, Distance Scale Line) by Ryan Lawrence

Narrow field of vision, ideal for traveling. I use this as a remote viewer behind my trailer. Works much better than a 170° wide-angle lens, which is good for backgrounds but useless for highway views. Wireless communication has a limited range, so we had to move the transmitter in front of the trailer and the receiver in the back of the truck. Haven't used this long enough to ascertain reliability, but so far works as advertised. By the way, the camera has distance markers that determine the camera's orientation, so the markers are always down, even if you turn the camera around. The video output is mirrored to the rearview mirror app, so you don't need to adjust your monitor settings for correct viewing.