radio frequency wireless

Here's why wireless speakers (mostly) suck

Fact is, all of the wireless speakers I've reviewed for CNET still use speaker wires to do what speaker wires always do, deliver audio signals from power amplifiers to the speakers. And since wireless speakers have built-in power amplifiers, they need to be plugged into an AC wall outlet. So where a standard speaker has one wire, the wireless speaker has at least two! The "wireless" part refers to the system's ability to wirelessly transmit audio signals from the front of the room to the surround speakers.

The two wireless transmission systems, infrared and radio frequency, … Read more