[jyl]

Yes, sync module needs Wi-Fi connection to your access point and cameras need Wi-Fi connection to sync module. I don't know yet what the range is, I'll post if I do some experiments.

I don't know about pointing outside. These cameras record a 10 sec clip and alert you, when they detect motion. You don't want it recording and alerting all day long as cars drive by.

A wired camera could continuously record. I see wired systems with several cameras plus DVR at Costco for $700 or so. I didn't want to deal with the installation and those cameras are too obtrusive to have inside the house (look okay outdoor), in my opinion.