Logitech Lift Vertical Ergonomic Mouse - Graphite - Sensor Type: Advanced Optical Tracking - Dpi Range: 400-4000 dpi (Fully adjustable with 100DPI increments) - Nominal Value: 1000 dpi - Number of Buttons: 6 - Battery type: 1x AA battery (included) - Battery life: up to 24- month - Wireless range: 10-m - 910-006479 - Open Box

Manufacturer Warranty: 12 Months Limited Warranty

Manufacturer Contact Info: http://www.logitech.com, 1800 025 544