Kensington Kensington Pro Ergo TB450 Wireless Trackball Wireless Patented Ball Eject Button Energy 7 Function Buttons Up to 24 Months Battery Life

50% Recycled Plastic: Kensington uses 50% recycled plastic to ensure sustainable management. High-precision optical sensor: Equipped with a high-precision optical sensor. Achieves smooth and precise cursor movement. You can also adjust the cursor speed with the DPI button on the bottom. (400DPI, 800DPI, 1200DPI, 1600DPI) Dual wireless connectivity: The TB450 trackball can be connected via Bluetooth@Low Energy (LE) or 2.4HGz wireless connectivity (2.4GHz wireless receiver). Ergonomic design: Ergonomically designed for comfortable operation, even during all-day use. The 45° tilt allows you to maintain a natural hand and wrist angle while using the mouse, similar to shaking hands. Patented Ball Eject Button: Kensington's patented ball eject button makes ejecting the ball easy. Very convenient for regular maintenance.