I have been using the MX MASTER series for 3 years. The 1st and 2nd generations are still in service. The 3rd generation is a sequel and has made a lot of adjustments in appearance. The slimmer body is more friendly to small users.
Compared with the previous two generations, the button layout has also been adjusted to reduce the probability of misoperation. The addition of the electromagnetic roller not only solves the minor problems of the previous two generations of rollers but also provides a more refreshing sliding feeling.
The MX series is Logitech’s most outstanding product series in the office field. Based on the sense of design, it continuously improves the experience of this series of office scenes, allowing users to use good-looking and easy-to-use products.
Tech Elucidations 
Jason 
Skanda 