We improved two really important factors, the tracking sensor and the tactility and feel of the buttons. What we know our fans will see and feel is that it's the exact same shape and size of the IntelliMouse Explorer 3.0 from 2003. However, underneath the hood it's all brand-new technology, brand new mechanical engineering and brand-new structures so it's a lot more rigid than the original. The build quality is really excellent.

We were really careful to keep the same Omron switches for the left and right click, and have added three Kailh switches for the middle wheel button and side buttons. We also made a huge improvement to the two side buttons. They now feel snappy and crisp and have just the right force and click to them