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The base of the nub/dock is adhesive, so to install it just peel off the protective film and stick it on. Be sure to get the placement right though, since while the dock can be removed using the included "removal tool" (the aforementioned 'handle'), once you've done so it can't be re-used. The dock will form a strong bond in under three minutes, after which you can slot the V550 onto it.
Doing this turns off the mouse automatically, saving the batteries. Overall though, the system is a matter of compromise. Obviously keeping the mouse docked while putting your notebook in a bag is impractical; this docking system has been designed for not having to carry your mouse separately when moving between meetings in the office, or rooms in your home.
And for that purpose, it works well. The mouse clicks in and out easily, yet remains secure during transit. The question is how many users will be willing to put up with the disadvantages. Aesthetically, even if you're lucky enough that the dock's colour matches your notebook exactly, it still doesn't look pretty. Although it's difficult to see how Logitech could have avoided this, basically it gives the impression someone left a subscription medicinal tablet lying on your notebook's lid. There's also an, albeit minor, increased potential for snagging.
While whether you think the docking system is the best thing since sliced bread will depend on how often you move about, how much you resent having to carry your mouse with you separately and how little you mind the blemish on your notebook's lid, the best thing about it is that it's optional. Quite simply, if you don't like the nub, don't use it - it doesn't add much cost after all. So, how does the V550 hold up on its own without its useful/gimmicky (delete as appropriate) dock?
What's left of the bundle is the mini-dongle and mouse itself. The dongle really is minute, with the protruding bit coming in at just 7mm (the whole dongle is 1.7cm)! As is typical for Logitech, the V550 uses 2.4GHz RF technology, rather than Bluetooth, a fact that makes it a true plug and play device for Windows and Mac users.
Getting onto the most important item, the mouse makes a good first impression. Like all Logitech's notebook mice except its VX range, the V550 is perfectly ambidextrous. It's by far the simplest model in the company's notebook line-up, in terms of look and shape if not functionality. As such, there are no moulded contours or curved finger-rests to be found here. It's still very comfortable to use, though, with the batteries giving it just the right amount of weight. The matte surface provides a pleasant feel and even for larger hands the buttons and wheel are comfortably within reach - the only exception to this is the Document Flip shortcut button below the scroll wheel.
Unfortunately, you will probably be using this button a lot, since it is one of only three: the scroll wheel does not act as a usable button. If you're frowning right now, then let me put a smile (back) on your face: the excellent reason the scroll wheel cannot be used as middle-click is because it acts as switch for the Hyper-Scroll function.