Whether you're working from home, the office or on the go, today's users seek device solutions that prioritise both comfort and productivity, whilst keeping sustainability at the forefront.the pro fit ergo tb450 trackball allows users to effortlessly transition from a mouse to a trackball and unlock the ergonomic advantages and space saving benefits it offers. With its thoughtful design, the tb450 utilises 50% recycled material, reducing the use of new plastics.bluetooth low energy or 2.4ghz wireless connectivity offer maximum flexibility. The tb450 also features a long battery life, a patented ball ejection system that simplifies cleaning and precise optical tracking.elevate your work setup with the pro fit ergo tb450 trackball where comfort, productivity and sustainability converge.features. The sculpted ergonomic design provides all day comfort and features a unique 45 degree tilt that helps improve wrist and forearm alignment. . 50% of overall plastic is recycled plastic kensington is committed to help reduce the impact of plastic on the global environment. choice of bluetooth low energy le and 2.4ghz wireless connection options 2.4ghz nano receiver included.. Long battery life up to 18 months 2.4ghz and or 15 months bluetooth.. A patented ball ejection system features a unique, easy to clean design with built in trackball ejection button to effortlessly remove the trackball for cleaning when needed.. A high quality optical sensor accurately tracks the 34mm thumb operated trackball, giving users smooth cursor control and optimal precision. . The tb450 offers 4 switchable cursor speeds 400, 800, 1200 and 1600dpi.. Plug play installation for simple setup. Free kensingtonworks software allows the tb450 to be personalised to enhance productivity.. Government grade 128 bit aes encryption for enhanced security to deter hackers from monitoring wireless connection and capturing sensitive information.dimensions. Height 50mm.. Width 93cm. . Depth 138mm.