A:AnswerNot an issue. Feedback happens when a microphone and speaker are too close to each other. I have a pair of Logitech USB external speakers and feedback doesn't happen. Don't worry. Be happy.
A:AnswerNo it is not. Not unless you find a way to secure it to your stand, but there is no threads or pilot holes cut into the plastic appendages that encapsulate this device.
A:AnswerI have a windows 10 and after update it worked just fine. Best investment I made. If you are wanting to Skype this mini cam is worth the purchase.