A:AnswerIf the boom arm uses a standard 5/8-inch thread, you can attach it to the included swivel adapteer. If it uses a standard 1/4-inch camera-type thread, you can attach it directly to the mic.
A:AnswerIt sounds like you'd want a mic that's omni-directional. The JLab Talk Go would meet that requirement, however I highly doubt that it's weather-proof. If there you have a way to protect it from the weather without blocking sound, or weather isn't a concern, then this should work great.
A:AnswerHi, we haven't tested this model with the Nintendo Switch as of yet. I would suggest to reach out to their website to see a compatibility list for a more accurate answer. From my past experiences, Nintendo Switches prefer more proprietary products specifically made for their brand. Hope this helps :)