The Datum line of wireless mice from Defender is an affordable mouse that costs $5–$7, primarily aimed at simplifying work with laptops or ultrabooks. Unlike advanced laptop mice a la Logitech MX, which use high-precision sensors and wireless receivers with Multipoint, Datum pointing devices are not designed for feats. Rather, these are unnoticeable but useful assistants for every day.


All representatives of the Datum series are united by a similar approach to design and ergonomics. Firstly, Datum mice look modest and neat. Secondly, they are all divided according to the type of case: for right-handers there are a lot of options with a case slightly beveled for the right hand, while for left-handed control the Datum models with a symmetrical case, which fits equally comfortably in both the right and the right hand, are more suitable. in the left hand.

The functionality is usually the same: on the sides of the case there are small recesses for the thumb and little finger, a button for switching DPI is hidden right under the wheel (note: if it is provided by the sensor), there are no more than three buttons on the case, and instead of a battery, regular AA batteries are used ( note: in wireless models). The optical sensor usually operates in the range from 800 to 1600 DPI; less common options are with a fixed sensitivity of 1000 DPI. The coating is non-slip soft-touch material.