Kensington Pro Fit Ergo TB450 Wireless Trackball K72179JP White

50% Recycled Plastic Used: Kensington aims for sustainable business practices and uses 50% recycled plastic. High-precision optical sensor: Equipped with a high-precision optical sensor, it provides smooth and precise cursor movement. Cursor speed can also be adjusted using the DPI button on the bottom (400 DPI, 800 DPI, 1200 DPI, 1600 DPI). Dual Wireless Connectivity: The TB450 trackball can connect via Bluetooth@Low Energy (LE) or 2.4GHz wireless connection (2.4GHz wireless receiver). Ergonomic design based on human engineering: Designed with human engineering in mind for comfortable use all day long. The 45° tilt maintains a natural angle between your hand and wrist, similar to a handshake, while using the mouse. Patented ball removal button: Kensington's patented ball removal button makes it easy to remove the balls. This is extremely convenient for regular cleaning.