Shure SE102MPA Sound Isolating Stereo Earphones / Headset Premium Sound Quality. Dynamic MicroSpeakers provide rich sound quality that lets you hear music and calls like never before. Inline VoicePort Microphone: designed to enhance vocal quality by filtering out background noise so callers hear you clearly. Inline Control Button: enables you to send and end calls without touching your phone. Comfortable sound isolating sleeves block over 90 percent of ambient noise, minimizing interruptions from the outside world. Included: 3 pairs of interchangeable soft flex sleeves provides optimal fit and comfort; the drawstring pouch ensures protection and portability