[Amazon.com] has J-Tech Digital Scroll Endurance Wireless Mouse Ergonomic Vertical only $19.50
About this item
- 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
- Receiver Distance:10 meters Nano Receiver; The receiver is attached to the bottom of mouse.