Logitech Performance Mouse M950
Modern office desks come constructed in many different materials in this day and age but desks made of glass or with high-gloss veneers pose a real problem when it comes to mouse tracking. Optical mice just don’t work on them without a mouse-pad.
I hate mouse-pads. They’re ugly things that I always end up fiddling with, peeling or picking at. For that reason I haven’t used one in years.
Logitech has been the leading innovator in mouse technology for many years and have yet again broken new ground with their Performance Mouse M950 and its Darkfield Laser Tracking technology.
Regular laser tracking technology relies on the ability of the mouse’s sensor to detect the textural derails of the surface. The more irregularities a surface exhibits, the easier it is for the sensor to identify reference points that it can use to accurately measure motion. However, because high-gloss surfaces such as glass are almost completely flat, there are not enough details for a typical laser mouse’s sensor to detect.
To track on glass (that’s at least 4mm thick), Logitech Darkfield uses dark field microscopy to detect microscopic particles and micro-scratches on these surfaces., rather than tracking the surface itself. Similar to the way our eye sees the clear night sky, the mouse’s sensor sees the clean areas of the glass as a dark background with bright dots – the dust. Then, the sensor interprets the movement of these dots to track exactly where you’ve moved the mouse.
The sculpted, right handed shape of the M950 gives you the comfort you need while four customisable thumb buttons put your most important controls – like application switching, opening a favourite folder and zooming at your fingertips. Force-sensitive side-to-side scrolling (software enabled), which is a first in any Logitech mouse, lets you quickly navigate around webpages.
The supplied rechargeable AA battery can be charged either by plugging the mouse into the mains cable or using the USB cable and plugging it directly into your computer. You can then carry on using the mouse as it charges. Three green lights on the mouse itself indicate the charge level and begin flashing when your charge gets low.
I use the M950 for 8 hours a day in my graphic design job and find myself recharging the mouse once a week – and can stretch that out to a week and a half if I turn the mouse off overnight using the on/off switch on the under side.

The wireless mouse speaks to the tiny USB dongle called the Logitech Unifying receiver. This is small enough to safely stay in your computer or notebook and can receive up to five other compatible Logitech keyboards and mice simultaneously.
I’ve been using the Microsoft Wireless Laser Mouse 6000 for a couple of years and with its natural ‘handshake’ shape, it has become a natural extension of my right hand. I absolutely love it, despite some of the gel thumb padding having leaked its liquid filling. So when the Logitech Performance Mouse M950 arrived on my desk I was scoffing at how it would have to be something very special to knock my favourite off its perch.
It did, and almost immediately at that. My old Microsoft Wireless has been banished to the drawer ever since, and it would take an unexpected hardware malfunction on behalf of the Logitech for me to pull it out again.
Using the M950 and a stylish glass mouse pad I’ve found the mouse to be incredibly precise and flawlessly smooth to move. All the buttons and features are perfectly placed and fully customisable which increases my productivity by having frequently used tasks at my fingertips.
At $199.90, the M950 is what you would call a premium product on the office peripheral scene and I personally wouldn’t have given it a second glance after seeing the price tag, but having used it for several weeks now, I have no doubt that the M950 is worth every cent.
For laptop users, Logitech have also released the Anywhere Mouse M905 which is more compact and uses the same dongle and Darkfield technology for the cheaper price of $149.95.