I love this mouse and loved them! The principle is great: with a bend you have a flat mouse to take away that fits with the NB-sleeve, and with a second re precise and stylish mouse. But: For a year I change permanently the batteries and the shorter in always intervals. Currently, less than two or three weeks. Can it be that the mouse requires more power than at the beginning? Seems physically impossible and altogether illogical. Perhaps I was simply less disturbed at the beginning of the short battery life. Meanwhile, the mouse, 2.5 years old, I have to constantly click twice, because the first click does not want, and felt by every tenth click change the batteries. For a shelf life of approximately 1.5 years, up to where everything was ok, this mouse is just too expensive. Very, very bad, but I'll find something else now.
