An Assistive Listening Device (ALD) is a technology designed to help individuals with hearing difficulties better understand sounds and speech. These devices amplify sound and reduce background noise, making it easier for users to hear conversations, lectures, or other audio sources. ALDs can be used in various settings, such as classrooms, theaters, and places of worship. Common types of ALDs include FM systems, infrared systems, and induction loop systems. They can be used with or without hearing aids, depending on the user's needs. By improving sound clarity, ALDs enhance communication and overall quality of life for those with hearing impairments.