J-Tech Digital Scroll Endurance Mouse

Features: Unique ergonomic design with removable palm rest to reduce hand and wrist pain. Two thumb buttons can be used for back/forward browser navigation. Driver free 3-mode DPI shift:600/1000/1600DPI adjustable.

High-resolution optical sensor with adjustable sensitivity for accuracy and responsiveness. Scroll Wheel lifetime:200,000 circles/ Button lifetime:3 million times.