Introduction
Fundamentally, wireless computer speakers operate in the same way as all loudspeakers; an electronic audio signal is translated, by a process involving magnetism and electromagnetism, into the physical vibration of the loudspeaker cone, reproducing audible sound. The difference between wireless and wired speakers, of course, is that wireless speakers are not constrained by any form of physical connection to the source of the sound. Instead, a transmitter connected to your computer – often, nowadays, by USB (“Universal Serial Bus”) – provides a wireless link to the speakers, which can, therefore, be positioned to your liking around your listening space.

Wireless Computer Speaker Features, Benefits & Considerations
One of the great advantages of wireless computer speakers is that they can be truly “wireless” – unlike wireless home cinema speakers, which typically require mains power – operating on standard, alkaline AA, or AA, disposable batteries, or rechargeable batteries. This means that they can be positioned around your desktop, or throughout your home office, and beyond, without the need to be near a mains power outlet, and without trailing wires.

Wireless computer speakers are also available in a number of different configurations to suit specific applications. A so-called 2.1 channel wireless speaker system is capable of reproducing two main sound channels, plus an LFE (“Low Frequency Effects”) sub-channel, and therefore comprises two loudspeakers, plus a specialised loudspeaker, known as a subwoofer. Cables Unlimited Wireless Speakers, for example, are “two way” speakers, capable of operation on disposable or rechargeable batteries, and offering arrange of up to 150`. A 2.1 channel configuration is fine for everyday music, video clips, gaming, etc., but for a lifelike, immersive, listening experience, you may also like to consider a 5.1, 6.1, or 7.1 channel configuration. These configurations – provided, of course, that they are supported by the sound card in your computer – add extra satellite speakers, which can be positioned to the rear, and sides, of the listening position, so that sound emanates from a full 360┬░. Creative GigaWorks G550W Speakers, for example, offer 36 Watts RMS per channel, on each of 5 main sound channels, and a 130 Watts RMS subwoofer.

Wireless speakers are available in a number of slightly different forms, utilising RF (“Radio Frequency”), WiFi, or Bluetooth┬« technologies for “through the air” transmissions. These transmissions are typically in the 900MHz, or 2.4GHz, frequency bands of the radio spectrum, and may therefore be susceptible to other domestic devices, such as microwave ovens, cordless telephones, etc.. You may therefore need to give due consideration to any of these devices – and, indeed, any other 802.11 wireless devices – that you may already have in your home.