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This mouse is bluetooth enabled and is therefore completely wireless. The product, when bought from Amazon as I did, does not come with a USB bluetooth adapter for your computer. Fortunately I have built-in bluetooth on my laptop, but for those of you that don't be warned you may need an extra purchase, although you can get a USB bluetooth adapter for under £5. Setting up the product is a cinch, put the supplied AA battery in and then press the bluetooth button on the bottom of the mouse. Now select the mouse on the bluetooth panel of the device you would like it t connect to... and that's it! You're all set up! This mouse is an optical mouse and therefore has the red LED light beaming from the bottom. This also means it is not as accurate as a laser mouse, this fact becomes apparent when playing games or using a photo editor, both of which require precise movements. Also, when making quick movements or swipes there is at times considerable lag which is particularly noticeable when gaming. It is by no means terrible, but you get the occasional jumps which can be annoying if they turn up at the wrong time. The scroll button works great and is much easier to use than the two finger scroll available on most laptop touchpads. The design is stylish and ergonomic, albeit a bit on the smaller side. It is not a full size mouse and I get uncomfortable using it for long periods of time even though my hands are relative small, although on short uses it is fine. This could turn out to be a problem if you have larger hands as some of my friends find this unusable due to the size. The battery in all honesty is pretty shoddy, I used the mouse in normal use for under a month and it required a battery change. There is a switch on the bottom to turn the mouse off if you want to conserve battery, however I used this and still got less than a months use from one battery. The switch has another use though, when you turn the mouse and the connected device off, when you turn both on again it should instantly reconnect as the products have been paired. Or at least that's the theory... In practice I have found that very often the mouse is not instantly recognized and I have to repeatedly switch it on and off to establish a connection. Often, even when I do manage to connect them, after as little as 3 minutes the mouse decides its had enough and drops out again, meaning I have to again resort to repeatedly turning it on and off. All in all, even for an average user, this is not a great mouse. But it was under £5 when I bought it from Amazon so I am making do. Anyone who had needs even slightly above the average user should consider other mice before opting for this one.