Instruct: Classify a review as either positive or negative.
Query: Did not work for me

Based on the majority of positive reviews of the ER22C I expected to have crystal clear sound quality with some comfort trade off because of the ear piece design.In reality, I was almost right about the ear piece. Almost being the degree of discomfort with that thing jammed in my ear made for short and infrequent calls. As for the crystal clear sound quality that never happened.... not once. Maybe my expectations were too high but I sent mine back and picked the ear bud that came with my iPhone which is comfortable and works fine.