Logitech has announced four new multimedia speakers that feature "360-degree" sound.

The Logitech Speaker System Z320, Logitech Speaker System Z323, Logitech Speaker System Z520 and the Logitech Speaker System Z523 offer omnidirectional acoustics which is claimed to create a wider sweet spot.

The Z320 is angled as perfect for the office or for those on the move, "simply plug in and enjoy 10 watts of sound", says Logitech of the £49.99 offering.

The Z323 gets 30 Watts of power and a ported, down-firing subwoofer and will cost £59.99 while the Z520 (£99.99) is described as "ideal" for home use with an amplified two-way design and 26 Watts of power.

Also £99.99, the Z523 system comprises of satellites and a 6.5-inch down-firing subwoofer that claims to "deliver deep lows for rich bass you can feel".

All products are due to be available in the UK from September 2009.