Wow! I was surprised when I read the reviews on this product.  It is DEFINITELY made for people with smaller ears!  Other bulkier ear pieces have not fir very well but this one fits GREAT! Also, I noticed alot of first time users that were rating this product..I HAVED used both WIRED earpeices and now bluetooth. This one is MUCH BETTER than most about not picking up backround noise but when it DOES get to be a little much, simply turn DOWN the volume a little on your PHONE not on the blooth tooth.  Using that adjustment may give you a little better fine tuning for the device.  ALSO, many phones include a feature that allows the mic to ignore heavy backround noise.  I am an alltel user and many of my phones have had this feature.  The batter has been GREAT TOO!  I have owned this blue tooth device for over a year now, AND LOVE IT!!!