Tobii Dyna Vox Eye Gaze Device"The DynaVox I-Series is an eye gazed-enabled speech generating device featuring the world's best eye tracker. Designed for people with conditions such as cerebral palsy, ALS, or spinal cord injury. I-Series is controlled completely with your eyes. The I-Series is custom-built to enable independent communication. Built for AAC speech generating devices - built for augmentative and alternative communication. They can be controlled via eye tracking in all lighting conditions, indoors and out. I-Series also offers switch or touch access and rear-facing Partner Window for face-to-face conversations. communicate with speed and clarity thanks to an Intel Core i5 processor and built-in speakers. Simply stated: Your eyes act like a mouse on the computer screen and can make selections. Must be calibrated to individual use.