Great little mouse, just wish that it was bluetooth so that I didn't have to use the dongle on my laptop.

Dongle hides in mouse; Has side scrolling; Works on any surface

A little expensive; No bluetooth; Only one side button

Priced in the region of £35, the requirement for this mouse is any system capable of running Windows XP and later with 100MB of hard disk space or Mac OS X 10.4 with 30MB of hard disk space.

While there are plenty of wireless notebook mice around, that hasn't stopped manufacturers attempting to try and innovate. Microsoft's latest attempt is the Wireless Mobile Mouse 4000. It's a wee little nipper - 61mm by 103mm - but despite its size it's relatively comfortable.

Small; portable; and full of useful features

Becomes uncomfortable with protracted usage

I have to say that since the introduction of Microsoft's proprietary BlueTrack technology I have been quite fond of any mouse that utilizes it. The ability to use a mouse that on virtually any surface is pretty cool, the only enemy being glass or mirror based surfaces.

Designed for laptops and computing on the go, Microsoft's Wireless Mobile Mouse 4000 is small and comfortable to use.

Designed for laptops and computing on the go, Microsoft's Wireless Mobile Mouse 4000 is small and comfortable to use.

This mouse is very good. It has multiple programmable buttons and good battery life plus it's wireless. I would recommend it to anyone looking for a reasonably priced mouse.

Very Responsive; perfect size; wireless range

nothing so far

This small but perfectly formed mouse from Microsoft is designed to be used with a laptop computer. To that end it's slightly smaller than the average desktop model, and its tiny USB receiver fits neatly into a slot on the bottom when not in use. That said, it works just as well with any desktop PC.

The Microsoft Wireless Mobile Mouse 4000 is a small mouse designed to be used with netbooks, and features Microsoft's BlueTrack technology which is designed to offer superior accuracy. The Wireless Mouse 4000 is a little mouse who makes its motion simple.

The stand out or rather, the most important feature of the 4000 is the inclusion of the Blu track sensor. This technology has given the 4000 the power to operate on any kind of surface where most mice would fail.