For professionals who spend hours navigating spreadsheets, creative tools, and multiple devices, comfort and control matter as much as precision. Traditional mice often require constant reaching and flat hand positions, while long-time trackball users have had few modern thumb-operated options to choose from. The Pro Fit Ergo TB675 Vertical Wireless Trackball was designed to bridge that gap. Its ergonomist-approved 60° vertical design and contoured shape support more natural wrist and thumb positioning, while a thumb-operated trackball keeps movement minimal and control intuitive. Combined with adjustable DPI, a premium 4D scroll wheel, nine programmable buttons, and flexible wireless or USB-C® connectivity, it supports comfort and productivity-without forcing users to compromise how they work. Ergonomist-approved 60° vertical tilt is designed to support more natural wrist and thumb positioning. Connect up to 4 devices and easily switch between them for seamless multi-device productivity. Rechargeable battery provides up to 4 months use per charge and eliminates need for disposable batteries. Premium 4D scroll wheel for smooth vertical & horizontal scrolling control. High-quality optical sensor with four DPI levels (400-1600) - switchable speed for precision or fast movement.9 customizable buttons -customize shortcuts (via free software) for one-touch access to your most-used commands. Patented push-button trackball ejection-easily remove the ball for cleaning and maintenance. Built to last and supported with a 3-year limited warranty. Ergonomist-Approved 60° Vertical DesignThe contoured shape with 60° vertical tilt is designed to support more natural wrist and thumb positioning and is well suited for average-sized hands. Triple Connectivity (2.4GHz + Dual Bluetooth® + Wired)Connect up to four devices at once via a 2.4GHz wireless dongle with 128-bit AES encryption, dual Bluetooth®, and a wired USB-C® connection. A built-in device selector makes it easy to switch between devices for seamless, secure, multi-device productivity. Long-Lasting Rechargeable BatteryA high capacity rechargeable battery delivers up to four months of use on a single charge. Recharge easily using the included USB-C® cable, with LED indicators to show battery status. Supports continued use while charging, providing dependable wireless freedom with wired reliability when needed. Metal 4D Scroll WheelA premium metal 4D scroll wheel supports smooth vertical scrolling and side to side navigation with a simple tilt. Its solid construction adds durability and control, making it easy to navigate wide spreadsheets, timelines, and large documents with precise, intuitive movement.