Used it with the Iphone 4s.  I have had many other bluetooth headsets and after losing yet another one I read the review and thought the features on the BlueAnt Q2 were unique.  I especially liked the idea of downloading the phone book and having the device announce the name of the caller. However, I am returning the BluAnt Q2 today after using it for less than a week.  The problem is that people I speak with on the phone complain they have trouble hearing me clearly.  This makes the product unacceptable.

Also, I should warn that the on/off button located on the device is very small and very awkward to operate.  I am talking tiny tiny slide button.  Forget about turning this on in a dark environment or while driving.  Too bad, nice features, but key to a bluetooth headset is audio quality.  This one just doesn't make the cut.
Used it with the Iphone 4s. I have had many other bluetooth headsets and after losing yet another one I read the review and thought the features on the BlueAnt Q2 were unique. I especially liked the idea of downloading the phone book and having the device announce the name of the caller. However, I am returning the BluAnt Q2 today after using it for less than a week. The problem is that people I speak with on the phone complain they have trouble hearing me clearly. This makes the product unacceptable. Also, I should warn that the on/off button located on the device is very small and very awkward to operate. I am talking tiny tiny slide button. Forget about turning this on in a dark environment or while driving. Too bad, nice features, but key to a bluetooth headset is audio quality. This one just doesn't make the cut.