This is a great headset for your Blackberry (I use it on my Pearl). Sound quality is good enough for music and calls and it actually makes it easier to listen to your phone calls. The microphone isn't great and picks up a lot of wind noise, unlike many of the sound canceling microphones out there.However if you live in California (and possibly other states that require hands free wireless in the car), don't cover both ears while driving as that's could result in a ticket. Either only use one earphone of the 2, or use a different headset in the car.