I have an AT&T HTC Fuze phone and the Jabra BT-3030 works perfectly with this phone.  The earbuds are a lot higher quality than I expected.  Several things impress me about this unit.  The microphone on the dog tag picks up my voice very well, despite haning on my neck.  The controls work very well when playing music on the phone.  The distance the unit works from the phone is excellent as well.  I am partially hard of hearing and several of the people I talk to using this phone are also hard of hearing, yet, they hear me quite well and I can hear them clearly and easily as well.  I highly recommend this BT-3030 headset for anyone.  I am ordering a 2nd so one can charge while I am using the other.