Inspected and tested prior to listing. Used sets in great condition. Takes 3xAAA batteries (included) Original RRP £30 From the seller site - Say goodbye to cable clutter and let your peripherals roam free – this set is completely wireless - A single nano receiver connects both the mouse and the keyboard, so you'll just need one USB port - More buttons mean more productivity – the mouse has two side buttons you can click with your thumb - The DPI switch lets you adjust the mouse's sensitivity on the fly
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