2.4G Wireless Vertical Mouse Ergonomic Vertical Mouse Upright Mouse Optical Mouse 3 Adjustable DPI Levels/ Plug&Play Black

2.4G Wireless Technology. It ensures the stable connection and free you from the twisting cables., 3 Adjustable DPI Levels. It offers you a pleasant sensation of higher speed, less delay and more correct location., Ergonomic Vertical Design. Compared with traditional mouse, the vertical design relieves the fatigue of your wrist, and offers you comfortable feeling for touch., Optical Tracking Technology. It ensures more correct location., Plug and play. No drivers required, just plug the USB receiver into the USB port of the device, easy to use.