Clearly a single box can not deliver true surround sound, however, they can certainly provide excellent sound quality and a more 3 dimensional sound as well. One of the most highly regarded options as far as wireless speakers for TV that provide a compact, single box solution is ZVOX.
In these instances, a wireless speaker for TV that can be located near any chair in the room for those who have trouble hearing TV. Some of these wireless speakers aren't high end audio, but they can work perfectly for getting the volume where you need it and they require very little effort to set up.
The best wireless speakers for TV come in all shapes and sizes. Some are designed to be paired with a specific brand of TV and others can be used with any model TV. From small, compact systems to larger systems there is a wireless speaker that will meet just about any need.