I HAVE THIS PAIRED TO AN G'ZONE PHONE BY CASIO. IT IS LIGHT WEIGHT,FITS COMFORTABLY IN YOU'R EAR,IN FACT YOU CAN'T TELL IT'S IN YOUR EAR.THE SOUND QUALITY IS GREAT,IT PAIRS UP EASY. I CAN FIND NOTHING NEGATIVE ABOUT THIS BLUETOOTH AND I WOULD HIGHLY RECOMMEND IT.