source credit: mn.gov
Attention/Focus aids are used to assist individuals who have cognitive limitations that prevent them from completing essential job tasks. They accomplish this by allowing an individual to focus solely on sound being produced by a computer or other device and by limiting the amount of disruptive background noise in their work environment.

Alerting/Signaling Devices
Alerting/Signaling Devices are used to assist individuals who have hearing limitations that prevent them from accomplishing essential job functions. They accomplish this by allowing an individual to have a visual indication that their phone is ringing.

Computer Headsets
Computer Headsets are used to assist individuals who have dexterity limitations that prevent them from accomplishing essential job tasks. They accomplish this by allowing a user to listen to audio from the computer, as well as speak to the computer. There are types of software that require a headset/microphone to function properly.

Cueing/Memory Aids
Cueing/Memory Aids are used to assist individuals who have cognitive limitations that prevent them from accomplishing essential job tasks. They accomplish this by providing the user alternative ways to recall information, such as tasks, appointments, or steps in how to accomplish activities.