i have an older 5 year old 29BT and it worked great till i got my new phone (droid 4) and it doesn't work with that phone.. i may have to upgrade to the newer version of the cb but i like that as well, and as soon as you push the blue button the mic is hot
Blue Parrot works good for me also, cuts out background noise, easy to hear the other person, easy to operate....
The only problem I have with headsets is that it is another battery to keep charged. That and I RARELY talk on the phone...might receive a phone call 1-2 times per week while I'm driving, and I'm not going to wear that silly headset all of the time "just in case" the phone rings. I like the CB because it is hardwired into the truck...no batteries, nothing to wear. If the phone rings, I just press the blue button...and turn down the stereo...and roll up the windows...