Kensington Pro Fit Ergo TB550 Wireless White Trackball, Rechargeable, (K72180JP)

51% recycled plastic: Kensington is committed to sustainability and uses 51% recycled plastic. USB-C charging. High-precision optical sensor: Equipped with a high-precision optical sensor, it ensures smooth and precise cursor movement. You can also adjust the cursor speed using the DPI button on the bottom (400DPI, 800DPI, 1200DPI, 1600DPI). Dual Wireless Connection: The TB550 trackball can be connected via Bluetooth@Low Energy (LE) or 2.4GHz wireless connection (2.4GHz wireless receiver). Ergonomic Design: Ergonomically designed for all-day comfort. The 45° tilt keeps your hand and wrist at a natural, handshake-like angle while using the mouse. The scroll wheel also features 4D scrolling for both vertical and horizontal scrolling. Patented Ball Eject Button: Kensington's patented ball eject button allows for easy ball ejection, making it extremely convenient for routine cleaning.