The American Research Institute testing rates the Ampli Ear a full 100 out of 100 points for clarity, amplification, and comfort. The Ampli Ear is 100% adjustable, fits all ear sizes in both men and women and is nearly invisible in your ear. So, end those embarrassing moments. Never apologize again for not being able to hear. Hear the Quietest Whispers, Listen to the FAINTEST phone conversations, Watch TV with the volume turned down lower, and CLEARLY hear conversations in a crowded room.