A:AnswerYes, you could mount the C920S to a wall or surface if you would like but Logitech does not provide or sell anything to be able to mount the C920S.
A:AnswerYes, the C920S will work for streaming on Twitch. Make sure once you have the webcam plugged in to allow the webcam to be used for broadcasting in settings.
A:AnswerDepending on what application that you're using the C920s with, you should be able to choose what microphone you use. Many of these applications---for example Zoom---automatically will choose your Blue Ice microphone. Simply check the settings before using the application. - Richard from Logitech
A:AnswerHey there! You're correct, this camera includes a built in microphone and camera, however it does not include a speaker. You'll have to attach a separate speaker system or a headset.
