The wire free design of the EZVIZ Mini Trooper Wi-Fi security camera system is incredibly useful in certain situations. I can see these being very attractive for renters who can't run hardwired cameras or someone who is just looking for a heads up that someone is poking around their stuff and wants an easy solution. You really can't get much easier. But this ease does come with some drawbacks. Really everything is centered around one potential issues: the batteries.