You can use Camtasia, which will screen record and record using the PC webcam and also a second webcam so that you can capture other devices such as a phone.
There’s also a clever thing called Lookback.io Which captures screen use and webcam on mobile devices.
Update: it really matters that you have a standard mouse. I tried the Camtasia recording tool today – recorded the screen, webcam and mic. It worked like a charm. Apart from the users being terrified of touching my Mac mouse or touch pad…..lesson learned…..more to follow