Technology: Logitech M190 Full-Size Wireless Mouse Design: Full-size, ambidextrous, and contoured shape designed for medium-to-large hands Sensor: Smooth optical tracking with fixed 1000 DPI resolution Layout: 3-button configuration with a wide, line-by-line precision mechanical scroll wheel Connectivity: 2.4GHz wireless link via plug-and-forget USB nano receiver (up to 10-meter range) Power Management: Automatic sleep mode triggers when idle to support up to 18-month battery life (1 x AA battery)