A:AnswerIt's pretty small and I don't know what type of sound you need.. give it a try and return if it doesn't work... not a huge investment. Works fine for me.
A:AnswerI have no idea if this will work with Windows 8.1. In fact, I've never heard of windows 8.1. However, my suggestion is you go to Insignia's web site and ask your question. I see nothing in the installation literature that requires specific windows platforms that to be compatible with the microphone. I have windows 10 and it works great.
A:AnswerAlthough I cannot be 100% sure it is hard to see why it wouldn't work provided that you have a USB socket to plug it in. It works with my Windows 7 office laptop without any issues.