24/7 Audio?

My wife and I are looking for a camera to use as a baby monitor. She had a question that I can't find an answer to online, so I decided to ask reddit. With either the Wyze Cam or the Wyze Cam Pan, can you leave the live feed open on the app 24/7, and does it broadcast the live (or 1-3 second delayed) audio 24/7? We want to be able to leave the app open on one of our phones when we go to bed and be able to hear if there are any noises in the baby's room.