The CSL Vertical Mouse protects your health during long hours of working on the PC. Its ergonomic design keeps the wrist from unnatural strain. The arm can maintain a neutral position, and the wrist performs fewer movements. This helps prevent mouse or tennis elbow (RSI syndrome), allowing you to work comfortably even after hours. The mouse provides you with important information at a glance. The integrated OLED display on the top shows you the battery status, connection mode (either 2.4 GHz or Bluetooth), and the selected DPI setting. You can also customize numerous button assignments here.