Logitech Wireless Desktop MK270 -£15.99 Amazon

The reliable wireless combo with a tiny Logitech plug-and-forget receiver. Logitech Advanced 2.4 GHz wireless delivers the reliability of a cord plus wireless convenience for up to 10 metres, with virtually no delays or dropouts - even in the busiest wireless environments. The Logitech receiver is so tiny, you can plug it in once and forget about it. Plus, the mouse features a built-in storage compartment, so you can take your mouse wherever you use your computer. A 24-month keyboard and 12-month mouse battery life - with auto-sleep and on/off switch - lets you go years without the hassle of changing batteries.