Ergonomically designed wireless trackball mouse. Purchased at an authorized local store in Thailand during my time there. Used for about a month, but it didn't suit me... It appears to be in good condition with no scratches or stains. - Brand: logi - Model Name: MX Ergo S - Number of Buttons: 5 - Trackball Position: Left side - Connectivity: Wireless USB-C type. Please refer to the photos for condition. Returns are not accepted.