We have some Blink Cameras as. They go on sale several times a year. They do not need a cable to them and the batteries last a long time. But they now need a paid subscription if you were not grandfathered in previously. You also need an add on device if you want the video recorded locally, which is why we do not prefer them.
https://www.amazon.com/Blink-Outdoor-Wireless-Security-Camera-Add-on/dp/B086DKMSSM
I have a Blink camera covering my front door, and I find it more than adequate for my needs. The Energizer Lithium AA batteries lasted just around a year and a half before I had to replace them.
But the drawback to the Blink, which isn't a drawback to me but may be to others, is that it doesn't record 24/7 so you can go back and review the footage if you want to find out if something happened.
The Blink must be triggered by motion, and only records in 30 or 60 second increments. And the sensitivity of the trigger must be balanced between getting good video of someone on your porch, and not triggering every time a leaf gets blown on the lawn.
The OP I think wanted the kind of security camera system where he can see multiple cameras simultaneously, which ain't the Blink system.