Midland SZ1B SubZero Stereo Ear Warmer Headset with Microphone for Cell Phones, MP3 players, and Midland 2-way radios High Quality Stereo Speakers Worn around the neck not on top of the head Adjusts to comfortably fit any size of head keeping your ears cozy and warm High Sensitivity noise cancelling microphone Compatible with iPhone, Droid or any cell phone using a 3.5 mm jack