What are hearing aids?
In its most basic form, a hearing aid is a device that amplifies the frequencies that you have trouble hearing. Most devices nowadays are digital, consisting of a microphone, digital signal processors, amplifiers, and speakers.
Hearing technology has undergone a radical rate of evolution in recent years. The introduction of digital signal processing technology has allowed chips to process multiple millions of calculations per second, resulting in unparalleled sound quality. The durability has improved dramatically, and comfort, as well as aesthetics, have been thoroughly addressed. Modern devices have shrunk so much in size that they are barely noticeable.