Independent living (mouthstick, headpointers etc)

Hello! I am working for a lady with MS and she can’t move her hands anymore. So I am looking for ways to enable her turn pages in books, change chanels on the TV and use an Ipad. I have heard of mouthsticks and headpointers, but didn’t really find a trustworthy shop in the UK. Can anyone give me some advice on it? Maybe someone has experience with it and can recommend something? Or are there even better ways?