Turn bluetooth off

I would like to know if there is any way to turn blietooth off. Sometimes I want to wear them and take pictures and videos without connecting to my phone because I have my phone connected to a bluetooth speaker. For instance, I want to wear them when I'm playing golf to take pictures and video, but I don't want my glasses to connect to my phone because I am playing music on a separate bluetooth speaker and I don't need to listen to music on my glasses. Or I might want to wear them when I'm driving to use them as regular sun glasses without them hooking up to my phone for music because I am already listening to music on my car syereo