Adesso iMouse T40 Wireless Programmable Ergonomic Trackball Mouse

Wireless TechnologyWorks up to 30 feet of wireless distance. Operates on 12 different channels, each with 65,536 different IDs. Ergonomic Contour DesignMinimizes forearm muscles from twisting and pains from Carpal Tunnel Syndrome. Built-in 1.5″ (40mm) Trackball with Optical SensorTracks accurately and precisely with less muscle movement for maximum comfort.Back/Forward ButtonsProvides extra convenience for web surfing. Removable TrackballAllows for easy cleaning. Adjustable DPI SwitchAdjustable cursor moving speed from 400-4,800 DPI.Programmable DriverThe programmable driver has a friendly user interface that lets you change lighting options, different button assignments, DPI Sensitivity, and macros to each of the buttons. Your Ai CompanionThe programmable driver has a friendly user interface that lets you assign a button as CoPilot AI hotkey. More from the Manufacturer Nano Receiver - Tiny and convenient to plug into to your laptop or tablet. Power On/Off Switch - Maximizes your bat