Bests & Worsts Reviews from Amazon

This mouse is not the same even though it is the same model. It is either a knock off or Logitech has changed the manufacturing or some one is selling a knock off. I had to replace my old M705 because the batteries started to corrode and destroy the contacts. When I received the mouse I noticed the contact pads are different, and that it was missing the thumb button. It does not have the same feel as my old mouse. I then purchased a second M705 through a different site and the mouse I wanted.