The terms assistive device or assistive technology can refer to any device that helps a person suffering from hearing loss or a voice, speech, or language disorder. These terms often refer to devices that help a person to hear and understand what is being said more clearly or to express thoughts more easily. With the development of digital and wireless technologies, more and more devices are becoming available to help people with hearing, voice, speech, and language disorders, and to communicate more meaningfully and participate more fully in their daily lives. Assistive Listening Systems (ALSs) are sometimes called Assistive Listening Devices (ALDs) by the ENT specialists. Essentially they are amplifiers that bring sound directly into the ear. They separate the sounds, especially speech, that a person wants to separate from the background noise. They improve what is known as the “speech to noise ratio.” Several types of ALDs are available to improve sound transmission for people with hearing loss. Some are designed for large facilities such as classrooms, theaters, places of worship, and airports. Other types are intended for personal use in small settings and for one-on-one conversations. All can be used with or without hearing aids or a cochlear implant. ALD systems for large facilities include hearing loop systems, frequency-modulated (FM) systems, and infrared systems. Hearing assistive technology such as audio loops (or hearing loop), FM, and infrared systems are like binoculars for the ears and work with or without hearing aids. These are assistive listening devices that help get past the obstacles to hearing.