I'm guessing the Logitech site will have dimensions. I think it's the smallest mouse they currently make. I used to use the Logitech VX Nano, which was the best mouse I ever used, but when it finally died, I went with this one, as they are about the same size and feel. The battery life on the Nano was incredible.... about 6 months of 15-18 hour a day use.I wasn't aware they had this. How is the size compared to the m705/m905?