Much better than a mouse to conventional batteries

Regarding the form of the mouse and its behavior this product is very satisfying.
There is an automatic standby, the mouse no longer works: actually think to press the wheel to activate the mouse.
There are 2 AAA batteries which is a good point and even the main advantage of this product: when they are worn you can replace them with other current models of trade.
More batteries to change every 2 months! More shutdowns suffered mouse in full use!
The only downside to this product is that charges via the USB port: it is necessary that the computer is turned on and secondly the mouse is placed in the base.
Now usually when the computer is on ... we use the mouse.
So it is that when the computer works alone you can ask the mouse in the base (when you download, you encode a video or burn a DVD, or during the games)
However the loading USB port can be an advantage: no power outlet, knowing that the power supply consumes power as long as they are connected, so even the computer turned off, even when the mouse is fully charged .
Last point: the positioning in the base is not precise and sometimes the contact is not made.
Conclusion: I prefer this mouse a mouse with batteries (which moreover has a disastrous ecological impact)