I ordered this article Saturday, 11.04, and sometimes the 15. I enjoyed this short delivery. My first impression when I opened the package I found a little small mouse. I thought it would cripple me a bit the first few days. That I would have expected a little bigger maybe. For the rest, it's really great! Already the fact that she did need one battery at a time, it will change my life. Furthermore, this mouse is discrete because the red diode is here usually invisible. It's really versatile and fits my need. I highly recommend it!