The night vision in this unit isn’t very advanced. Don’t expect good quality. Night vision that would actually work would cost about 10 times as much as this product.
I have a video baby monitor and it is also 2.4 ghz, but let me tell you that the interference they experience is somewhat distracting and makes it a little hard to focus on the baby in the monitor. I had to turn mine all the way down to eliminate the static pops and hisses to see the baby, and the lines through the video were a little distracting, but I was still able to use it and it did help.
I have computers and other electronics, including a wireless router, and no matter what I shut off, the interference between the walls stayed no matter what, and the two rooms are only about 20+ feet apart with only a couple of walls between them…
If you NEED it, then go for it, but if you think that this will give you a clear crisp picture and audio, you are mistaken. If you can live with it, then the peace of mind of looking at the baby asleep on the monitor really is worth it, but if you want to sleep while the audio is on, you’ll probably have to turn it WAY down.