the two things i find work best are:
1. An over the head BT headset from Delton, about $30.
With a true boom mic it works vastly better than even the most expensive units. Available on Amazon.
2. A regular, old Apple or JBL earbud system. Mic location is an issue as it flaps around
If you want a stylish, small, hang-on-ear solution, the best, by far, is the Plantronics Voyager. My bud who used to run VZW's lab told me to try one.
Jawbone sounds awful - people can't hear you clearly, often even in a closed car.
Grant
Grant
gee-lenahan-at-gee-mail-dot-com