I REALLY WANT TO UNDERSTAND WHY SOME PEOPLE TALK BAD THINGS ABOUT THIS PRODUCT.MAYBE THEY HAVE PROBLEMS WITH THEIR EARS. THIS PRODUCT IS NEAR TO EXCELENT.EXCELENT SOUND, ONLY ONE BUTTON FOR ALL FUNCTIONS, WORKS GREAT WITH SMART PHONES WITH VOICE RECOGNITION AND THE MOST IMPORTANT FIT PERFECTLY IN YOUR EAR. I HAVE TRIED TO JUMP AND SHAKE MY HEAD WITH IT IN, AND IT IS VERY DIFICULT, IT DROP OFF.I ORDERED TO AMAZON THE WEP200 AND LATER I READ ONLY THE BAD OPINIONS. I WAS WORRY BECAUSE I FELT I BOUGTH A BAD PRODUCT. THANKS GOD I DID NOT READ THE BAD OPINION BEFORE GET THIS FANTASTIC HEADSET.THANKS YOU