bluetooth suffers from poor range, so unless you are really close to the bride and groom, then it isn't an option. Unless you want to spend thousands of dollars, it's one wireless system per person that you want to have an individual mic. In the example given in the OP, then that's two systems. You can do a lav plugged right into a small recorder, but then you won't know if things are bad until you import the audio into your editor.
You can get a good multi-track recorder for pretty cheap these days. If you are making a living, or at least good side money, then you owe it to yourself and your paying clients to have decent and proper equipment.
You can get a good multi-track recorder for pretty cheap these days. If you are making a living, or at least good side money, then you owe it to yourself and your paying clients to have decent and proper equipment.