Do you have to use Alexa with it for all the other features to function?
you download a free app too your phone android or iPhone, its user friendly.
Never used lexus with it to be honest. Not sure if you could
I just use my app on my phone if I need to change camera settings or view my cameras there's lots of pictures in those links I sent you and info
You can have the camera light up and make an alarm noise when they detect a human too.
you can turn that off too
You can also change how much area size to detect for sound and humans etc
Its able to distinguish between human shapes and animals. So you don't get loads of notifications that way. Say if you wanted one inside your house as well and you have pets etc it's good for that
But as soon as one camera detects a human you can set the notification setting so your phone gets alerted.
You then open the app on your phone to view the camera where you could speak through it at that time if you wanted to. Say if you got somebody knocking at your door whilst you where out.
if it's an un welcomed intruder just the alarm alone on the camera makes them disappear. But if you dont want that alarm on, they poo them self's when they hear your voice lol