MEETION MT-M990S MECHANICAL GAMING MOUSE BLACKGTransformer Gaming Style. The mechanical double wing design is matched with the scif armor wheel shape, such as the science fiction chariot to conquer the world. The left and right symmetrical design follows ergonomics, feels comfortable and holds firmly. Gaming Resolution. Four level DPI adjustable by top DPI button to ensure precise positioning and speed. Fast Button Response. The button is crisp and responsive, and the rebound responds quickly