|Optical or Scroll Mouse||Clickable Scroll Wheel|
|Number of Mouse Button||4 Button|
A vertical ergonomic design fits the natural contour of the wrist and palm perfectly. Precision control is achieved through the use of optical laser technology. It has an L / R mouse button, two thumb button, and a scroll wheel that can be clicked. This product comfortable hand-holding posture improve mouse control and eliminate occupational carpal tunnel syndrome.