Does anyone think that maybe the stutter problem is because the unit has a poor BT radio? Not a problem with the Hack or the headphones.

I have Iphono mini BT450RX's headphones and get some stuttering. The stuttering usually occurs after starting to play music and then on some songs that are at higher bit rates. I also have stuttering when I have a body part or anything between the phone and the headset.

Is there anyway to rate/test the BT radio for my unit?