Assistive Technology Loan Library item === This USB adapted mouse can be used for individuals who have difficulty using a typically or typically adapted mouse. This device easily makes the mouse available through the use of a directional, mouse-arrow pad OR through the use of external switches (not included). This could allow an individual to use different parts of the body for different mouse movements. In addition, a head array of switches could be arranged. If you are looking for a mouse access and have not been satisfied with other alternate mice or joysticks, this unit may be effective. Website: www.atnad.com.