I was so excited when I 1st ordered the BlueAnt X3 micro bluetooth because I "thought" I found the perfect one. However, the earbud is kinda large and really doesn't fit in my ear. When I finally maneuvered the included clear earbud, it stays on for like 10 seconds and you can't move your head around or anything. Anyways, the sound is awesome. The functions are easy to use and sync to up to 3 phones. Plus you can charge it with the usb, car, or home charger all included. I would highly recommend it for normal to large ear people. Petite females like me should be cautioned. Love the hot pink.