The ambidextrous full-size design provides a secure grip whether you are left-handed or right-handed. Suitable for use on many surfaces, the 1600 DPI resolution and laser sensor is perfect for tracking down to the tiniest detail. Complete tasks with ease and professional-grade accuracy with the Lenovo Professional Wireless Laser Mouse. Full-size mouse for all day comfort; 2.4GHz Wireless USB connection for stable connectivity; 4-way scroll wheel for vertical and horizontal scrolling; Invisible laser sensor with 1600 DPI resolution for precision tracking; Supports Multiple Pairing Protocol for USB dongle replacement; Up to 24 months battery life (may vary based on usage)