IPEVO CDHA-04IP Open Stereo Earphone with In-Line Mic (Discontinued by Manufacturer) Headset with OGS (Open Guided Sound) earphone technology and in-line microphone Earphones fit over the ear, not in the ear, for a more natural sound and a more comfortable experience Ideal for language classes, computer labs, and similar teaching contexts; teachers can still be heard with earphones on Fully compatible with iPad/iPad 2/iPad 3, PC and Mac, iPhone, iPod, and many smartphones and MP3 players In-line remote control to adjust volume, accept calls, hang up, play, and switch music tracks