Stick up cam - few questions

Hi, Just bought the stick up cam for the garden and I've got a few queries which hopefully someone can answer:\* is there a way to turn the audio off so if I'm out in the garden its not listening and recording me?\* if the camera is in position but not recording as there is no movement, would it be able to hear and record audio? \* I get a lot of birds and squirrels in my garden, how do I prevent the camera notifying me when they're in there, cos I don't really want this? Just unwelcomed guests lol\*when I go on the app and watch live, does this use my data on my phone if not connected to wifi?Thanks in advance