Logitech has announced a pair of stereo speakers that connect wirelessly to a laptop, desktop PC, tablet or smartphone and offer a neat solution for those who don't want to fuss around with wired desktop sound systems.The Logitech Bluetooth Speakers house three drivers in each unit and connect to up to three devices at once. You can hook up a smartphone, tablet or laptop to them through each of those device's in-built Bluetooth transceiver. Or for those who own computers without native Bluetooth support, a USB dongle is included.It can also ensure that computers that do have Bluetooth but don't support audio streaming or smooth device switching are also compatible.On the top of the\u00a0right speaker, a touch panel allows you to set the volume by just gliding your finger around the edge. A 3.5mm jack is also present, in case you do want to hardwire a device, and obviously they are not totally wireless as one has a power cable attached. But it is a specially designed lie-flat cable so shouldn't get in the way.The Logitech Bluetooth Speakers Z600 will hit the UK and US in August. UK retail price will be \u00a3129.