Electrical – Switching out old broken shaver socket for new one. Having trouble working out how to unwire the existing socket

bathroomelectricalsocket

I'm trying to work out how to unwire an existing shaver socket.
There are no obvious fasteners to loosen, just these weird red tabs that click backwards and forwards and can be pulled out entirely. Trying these options though doesn't seem to make any difference to the cables, which I'm unable to remove.
existing socket

It's pretty hard to Google for this issue.
FYI, I'm in the United Kingdom.
Any ideas?

Cheers.

Best Answer

For over a year, this "unanswered" question has had an answer and acceptance in the comments:

Looks like push-to-release connectors. So try pushing and removing the wire at same time.... at worst you can cut the wires as next as you can to the box and rewire the new outlet. – DDS May 19 '18 at 9:22

Turns out they were push to release connectors. Thanks for the assistance guys. – Iain May 19 '18 at 13:08