I have a bluetooth watch and I always leave bluetooth on incase I need to correct the time with a press of the button on the watch but thought maybe I should turn it off incase its wasting battery. Does bluetooth admit to being on air or periodically checking the air around you or is it only "on" in a sense that if something were to call it it would receive the call. I am assuming if its on. It would always be "checking for incoming traffic" therefore. scanning the air around you. Mine is like over 140 feet of bluetooth I don't need to be rubbing that in all day long. lmfao. jw, thanks.