ShineJewel(TM) Earphone In-ear Headphone with Microphone & Volume Control for I Phone I Pad I Pod 3.5 Mm Plug for Mp3 Player-Gold Brand: ShineJewel(TM).You can adjust volume by pressing + and - buttons with microphone and volume control function 3.5mm audio device. Soft earbud fits for PC notebook, desktop, I Pod Nano, Mp3, Mp4 player etc Control the playback of music and video, and answer or end calls with a pinch of the cord. Excellent sound quality and super clear sound, Superior Comfort. Unlike traditional, circular earbuds, the design of this new Earphone is defined by the geometry of the ear.