Logitech M190 is a full-size wireless mouse with a comfortable contoured design that follows the natural curve of medium to large hands. You’ll work wirelessly and move freely – from up to 10 meters Wireless range and battery life may vary based on user, environmental and computing conditions. away – with virtually no delays or dropouts. You’ll get great quality with 18-month Wireless range and battery life may vary based on user, environmental and computing conditions. battery life, precision tracking, and line-by-line scrolling at an affordable price. TECHNICAL SPECIFICATIONS Sensor technology: High Precision Optical Tracking Sensor resolution: 1000 dpi Number of buttons: 3 Scroll wheel: Line-by-Line Precision Unifying ready mouse: No Unifying ready receiver: No Battery life: 18 months Wireless operating distance: 32.81 ft (10 m) 5Wireless range and battery life may vary based on user, environmental and computing conditions. Wireless technology: Logitech Nano Receiver