Wanted a unit that would conference 6 people on a small table. Lead was ridiculously short. Team at other end of call were struggling to hear. Was expeting to be able to change levels in app but the app does nothing useful other than ensure you have the latest version of software and capture your contact details for marketing. No user/operating manual/instructions. Had mike on max sensitivity in Windows. Not sure if this thing has bluetooth capability - certainly not found it yet.