Meet one of the newest models of the Adesso Trackball product line, the Adesso iMouse T50. This device is cable-free by utilizing the 2.4 GHz radio frequency technology, offering a wireless range of up to 30 feet. It's also fully programmable, meaning every mouse button can be customized to your preferred function with its programmable driver. With its 5 levels of DPI resolutions (400-4800), the optical trackball provides superior accuracy and smooth motion, reducing hand movement and space. This mouse trackball is also easy to maintain - just push trackball outward from back, clean and push it back in place. Its ergonomically contoured 2 large size trackball and adjustable leg stands further completes its ergonomic advantages, making your daily computing tasks more comfortable and stress-free.