Kensington Pro Fit Ergo TB550 Trackball Mouse

• Sculpted ergonomic design provides all-day comfort • Features a unique 45 degree tilt that helps improve wrist and forearm alignment • Includes a choice of Bluetooth Low Energy and 2.4Ghz wireless connection • Rechargable battery provides up to 4 months of battery life with a single charge via USB-C port • A patented ball ejection system features a unique, easy-to-clean design with built-in trackball • High-quality optical sensor accurately tracks the 34mm thumb-operated trackball, giving users smooth cursor control and optimal precision • Plug and play installation