They have the arlo pro out, it has rechargeable batteries. I had one to play around with and it only recorded 10 seconds of video. You can change it to a bit longer. If the camera loses wifi the battery dies in 8-12 hours...uses its energy trying to find a signal. Range on he unit I had was a whopping 30 ft at best. Some times I was unable to access the camera with the app, the speaker never worked for 2 way communications.
I played around with it for about a week and had to send it back as it was pretty bad. I do have a client with a few at 2 locations and they seem to be happy with them.
There's no worse feeling than that millisecond you're sure you are going to die after leaning your chair back a little too far.