Most consumers dislike having to run cables from the front of the room where their system is, to the back of the room where the surround speakers need to be. One way to help with this problem is wireless speakers.
The problem is, all wireless speakers are really just wire-less, as in less wires. They all need to be plugged into AC power, or come with a wireless receiver/amplifier that needs to be plugged into AC power. The advantage, though, is that wires don't need to be run from the front of the room.
HomeTheaterReviw.com's reviews of wireless speakers include: