I have tried a few different mics over the years. These are my favorites to date. Setup was easy, and the consistently work well. Even in light wind. WAY better than the built in microphone of your phones. This is MOST noticable outside. But, even indoors, you get a better and more constant sound using these vs built in microphones.
The fact that two people can have mics attached at the same time is real plus!
Even if you a recording a group setting, I recommend using these microphones. You can place them at two areas in the room, and you don't have to worry about your voice (the person recording with the phone) being at a much higher level than others.
They are just the best devices to use for a planned recording, no matter what the circumstances are.
The case is nice quality as well.
A great value for your dollar!