Yes, I can hear the wind and road noise.

IP66 waterproof, operation temperature: -4~140F, idea for outdoor application - deer, critter and any animal wildlife trail, hunting, or home security.

Not sure what you mean. You can enter a code that you must put in in order to operate the camera.

Yes，this game cam have the threaded hole on the bottom ，Please rest assured to purchase

Yes and no. Using motion detection it doesn't work through a window. However.... using the timer inside it you can record through a window using it. How? Set the timer to record 4 minutes every 5 minutes for 1-5 hours or whatever time you need it to record for. This is what I do- just make sure you have a SD card with enough memory for the videos- I use a 32 GB SD card, I use it though a window as a security camera for my car....I live in an apartment so I can't hard wire anything and this works great for what it is.