Had a WiFi connected camera with 2 way comm and panning for my first and one day the wife was breastfeeding the kid before bed with the camera on and observed it pan to look directly at her. After she asked if I was messing around with it which I was not. Creep'd us out thinking some freak on the other end picked up the feed, worse they could potentially speak to your child at night using the comm function.
That unit was promptly sold and we now have a non WiFi short range transmission only for newest addition. Still has 2 way comm which is useless really, but if you're not right outside the house using some kind of signal decoder you're not picking it up.
Link below, on the plus side it's pretty cheap and will be all you really need.
https://www.amazon.ca/Dragon-Touch-m...1444420&sr=8-4