The WyzeCam is a $20 home security camera that competes with the Arlo and Nest cam's that cost anywhere from $150 to $200. The V2 of the Cam offers better camera sensors and two way audio.
https://www.amazon.com/gp/product/B076H3SRXG/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B076H3SRXG&linkCode=as2&tag=dlbds04-20&linkId=3a83e5cb6795ccdba36125d7032a6a11