Left-Ear Stereo 1-BUD Earphone w/ 3.5mm Plug and Mic &ndash; for MP3 Players, Tablets, Cell Phones all Apple iPod, iPhone and iPad Models Combines the left and right audio channels into a single earpiece designed to fit the left ear Has a 1/8-inch size 3.5mm plug, compatible with most devices In-line microphone makes this earphone ideal for use with a smartphone, whether talking on the phone or listening to music. Enables users to safely keep one ear open to surrounding activities while listening to audio Slide Volume Control, push-button switch and microphone for use with cellular phones. Very popular for those with single-sided deafness.