Hi. I'm new to forum, and I would be very grateful for any help you can give. I recently invested in a basic (Groov Ultra) Bluetooth headphone with mic. It's paired successfully with the PC. As headphones they are OK. But I cannot get the mic to function. If I use Win Voice Recorder, select 'record', and I'm listening to something, the sound cuts off, but the app doesn't register or record my voice. Is this likely to be a) a malfunction of the headphones or b) incorrect set-up or c) something else entirely. The second part of the thread is this: I have the headphones/mic (bluetooth), a Logitec webcam (USB), and a desk mike (USB). In my head, these all have different purposes. How can I easily tell the PC (Win 10 OS) which I wish to use? Could I write, say, three batch files which would go through the process of selecting three separate setups?