Some are designed solely to produce written text or speech and are referred to as dedicated communication devices. This type of equipment uses a software program to enable the user to store favorite words and phrases for later recall. A variety of options are available to the experienced computer user. Disability software has been designed to address multiple computer accessibility needs. Software can enable PALS to surf the 'net, send e-mail, and use most software applications.
PALS can turn on the TV, music, lights, etc. using an environmental control module.
High-tech devices are battery operated for portability. Hands, eyes, head, or other body parts can activate the input method. All high-tech devices require training to program user options, new words, phrases, environmental controls, etc. A caregiver or friend will be needed to help with the initial programming. Troubleshooting frequency will depend on the experience of the user and proper care of the equipment.