Q: What do you get when you buy over-the-counter (OTC) hearing aids? When you buy hearing aids over the counter (in stores or online), you are responsible for setting them up. That includes adjusting and tuning the sound yourself. Prescription hearing aids, on the other hand, have advanced technology and are fitted and programmed by […] The post Q&A: Hearing aids — over-the-counter vs. prescription appeared first on The Portland Clinic.