I'm a very happy red moon user. My main problem is that sometimes it is on or turns on by accident when I am outside and I don't manage to turn it off because I

I'm a very happy red moon user. My main problem is that sometimes it is on or turns on by accident when I am outside and I don't manage to turn it off because I cannot see the screen. I would love to have a way to turn it off without needing to be able to see the screen, although I can't really think of a way that could be done...