Speakers are engineered to maximize sound output and minimize sound loss | Include a built-in remote that lets you adjust the volume, control the playback of music and video, and answer or end calls | Design is defined by the geometry of the ear to ensure comfortable wearing | This product has been professionally inspected and tested | A premium product with a sense of reliability and encouragement | We assure the authenticity and quality of our products | Best quality construction ensures a lasting use | Crystal clear phone calls and conversations