Much as we like some of the touchpads on laptops, like those on the Samsung Series 9 or MacBook Air , as a navigation device even the best of them are usually still inferior to a mouse, especially when using an interface like Windows.
Unique visual design(s; Ambidextrous; well-built; Micro-gear scrolling is a pleasure; Lasts up to 18months on a single AA; Tiny unifying Nano receiver
Uses ‘dated' optical sensor; No direct access to receiver storage