Adesso iMouse T40 - Wireless Programmable Ergonomic Trackball Mouse

Wireless Technology - Works up to 30 feet of wireless distance. Operates on 12 different channels, each with 65,536 different IDs.. Ergonomic Contour Design - Minimizes forearm muscles from twisting and pains from Carpal Tunnel Syndrome.. Built-in 1.25” Large Trackball with Optical Sensor - Tracks accurately and precisely with less muscle movement for maximum comfort.. Programmable Driver - Easy-to-use user interface allows for full customization within seconds.. Removable Trackball - Allows for Easy Cleaning.. Adjustable DPI Switch - Adjustable cursor moving speed from 400 to 4800 DPI.. Back/Forward Buttons - Provides extra convenience for web surfing.. Micro-switch - Equipped with its 10 million times lifecycle microswitch, the iMouse T30 provides durability and reliability for your needs.. Power On/Off Switch - Maximizes your battery life up to 6 months.. Nano Receiver - Tiny and convenient to plug into to your laptop or tablet.. Meet one of the newest models of the Adesso trackball