1. Mouse appearance using the classic black-based color, the side of the arc just in line with the palm

   type, easy to move easily, good grip.
2. ergonomic design, symmetrical design, more compatible, easy to use handy.

   More than 3.5 million times the key life.
4. 800DPI high precision optical engine.
5. Mouse internal design to increase the block structure, running more robust without drift.