Crown Micro Adjustable 400 / 1600DPI USB Wired Optical Mouse USB wired notebook mouse. The model is designed for both hands. Working with the mouse is very comfortable and convenient. Hands don't get tired from long-term work. Features Connection type: wired, USB DPI: 400/800/1200/1600 Number of buttons: 3 + 1 scroll button High precision optical engine Physical characteristics Cable length: 130 mm Weight: 69 g Size: 107 * 60 * 26 mm EAN: 6291105910934 Model: CMM-21 Silver