BATTERY LIFE 14MONATE With frequent use

My purchase decision was decisively influenced by the fact that this trackball Logitech finally a mouse is on my hand completely fits it. In other mice my hand is always half up put on the table ...

in brief

positive:

+ * NEW * BATTERY LIFE 14 months !!! Without the mouse off and each with very frequent use (several hours a day)
+ Size
+ Design
+ Accuracy (it takes a bit of practice - For years I had a trackball previously)
+ Ideal for desks with little space, such as my :-)
+ The new forward and back buttons are self-evident, but still very good.
+ Space for the small USB receiver in the battery compartment. Convenient to transportation.
+ Battery life. (Did the trackball only one month, but I hope the keep of Logitech promises.

negative:

- Wireless-property at a trackball not often necessary.
- Not for the gamble. Unsuitable for very fast, precise movements in my opinion.

Conclusion:
Genial for people my big hands and a little desk space.