Meet one of the newest models of the Adesso trackball product line, the Adesso iMouse T40. It incorporates the claw grip design where each user can rest his entire hand over the mouse. The trackball location allows users to move their cursor by rotating the trackball with their fingertips to reduce the need of hand movement. It is cable-free by utilizing the 2.4 GHz radio frequency technology, offering a wireless range of up to 30 feet. Its also fully programmable, meaning every mouse button can be customized to your preferred function with its programmable driver.