I have the 6 5.1 and you don't have to wall mount the rears. If you are wall mounting, then you literally put a single screw in the wall and hang of that, otherwise you can bookshelf mount them no problem. All you'd need is a little blue tak. They're not so narrow they won't stand up or might wobble. They're heavy and not that small at all. So quite a flexible speaker. The package is brilliant and a bargain at that price.