I traditionally have problems with earbuds not staying in my ears. I have long learned to use earhook headphones with my IPOD, but have been looking for something similar for my cell phone. These are the answer! Sound great, stay snugly in my ear even while running, and let me listen to my phone's MP3 player, answer calls with the push of a button, all while never taking my phone out of its case or my pocket. Can't go wrong with these!