LOGITECH M190 (910-005906) LOGITECH M190 Wireless Mouse - MID GREY (L910-005906) Sensor technology: High Precision Optical Tracking Sensor resolution: 1000 dpi Buttons: 3 Scroll wheel: Line-by-Line Precision Wireless operating distance: 10 m Wireless technology: Logitech Nano Receiver Height x Width x Depth: 115.4 mm x 66.1 mm x 40.3 mm Weight with batteries: 89.9 g USB