Still a royal pain in the ass compared to never changing batteries at all. I have a wired + wireless system. All door and window sensors are wired. All motion sensors are wired. The keypad is wired to the control unit, but has wireless capabilities built into it. If I want to put a wireless sensor somewhere it makes sense to have one (like on the shed in the yard), I can do so. But that's only ONE sensor whose battery needs replacing, not 29 doors and windows + 4 motion sensors.