I am thrilled with this purchase, this mouse is lightweight, practical, accurate. The sleep function can extend the life span of a battery dramatically. The day turns herself after a few minutes of inactivity on and off at the first click, it's very convenient. The mini dongle stores inside the mouse, which is very light and flat shape so easy to slip into the cover of the notebook. Its ergonomic shape is very pleasant to use, while with other mice I had pains arm problems, then all is well despite intensive and daily use in the office and on the move. I have tried many wireless mouse models, large or mini, this is by far the best for a very reasonable price!
