Before everyone recommends a bluetooth headset I HATE THE WAY THEY SOUND. 3 of my 7 techs use various bluetooth headsets and they all sound horrible. During the conversation, no matter which ones they are using, there are times there is nothing more than a mumble. I hate being on the end of a bluetooth headset call and I do not want to subject my customers to it. So, any recommendations on a good wired headset that is easily put on / removed. This will be used in the truck only and I don't want to put it on till the phone rings.