Design-wise, RIE hearing aids sit behind the ear. Traditionally, microphones in the main body of the hearing aids send sounds down through a thin, virtually invisible tubing, curving discreetly around the back of your ears, into a receiver covered with a comfortable dome. The dome-covered receiver sits in your ear canal. That is why Receiver-in-Ear hearing aids also belong to the ‘in ear’ hearing aids category, i.e., the sound processing takes place in your ear.