With three hearing aids total in its line of products, some people wonder if MDHearingAid will be able to suit their needs. From the standpoint of hearing quality, MDHearingAid pre-programs its hearing aids to provide good hearing quality for the majority of people with mild to moderate hearing loss. MDHearingAid’s products will not work for everyone, which is part of the reason why the company offers a 45-day trial period with a money-back guarantee. When it comes to physical comfort, the company enables customization in the sense that its hearing aids can be used with tubes, tips, and ear domes of varying sizes. For most ears, these devices will fit nicely. Customization is kept to a minimum, which is one reason why can control the entire process from manufacturing to sale and keep prices low.