I use a Fishman SA220 as my main PA system which can fit into a small space if necessary and is quick and easy to set up. 

I also have a smaller speaker which is battery powered as well as mains.  This is useful if singing outdoors or in an unusual place (ie. on a beach!)

I have a few microphones all made by Shure which is the recommended mic for vocalists and which I love, my favourite one being the old fashioned Retro Mic.

My equipment is PAT tested and I am fully insured for Public Liability.