Thank you for reply; there is built in audio inasmuchas I get quite useful sound through the built in speakers. There is a socket on the right hand edge which I think is there to accept earphones jack plug but sound is not delivered via headphones and sound continues through speakers when earphones jack is plugged to the socket.
I have been into device manager etc, there is reference to the speakers but not any reference to any earphones/headset facility.
I am getting to the idea that this facility is not offered in this laptop. That is a surprise and a disappointment to me.