I want to get wireless earphones with enough bass to rattle my bones, has a mic, can control my music, and may possibly be synced with another pair so that 2 earphones sets can listen to the same source. Any advice would be appreciated.

Hi.
I would appreciate any input. thank you!

Perhaps JayBird with Apt-X Technology...

Jim

hi everyone just got very interested in this as well... looks like i am very interested in the new IPOD nano since it has bluetooth finally, would be amazing to toss in my little zipper pocket while i work out. really wanted to explore WIRELESS / BLUETOOTH iems  that would be great for working out and exercise.   if its water /sweat proof that would be an added bonus!!!

Google JayBird Sportband
 
Good Stuff, Jim

+1 on the Sportsband.
I use the sportsband with my Sony Walkman S series and it's a very good headphone for a bluetooth sweat resistant model.  I don't think I would go so far as to say that they are head rattling in the bass department however.  I believe that they are quite comfortable and don't budge when I'm running.  Now I don't think they would work if you are laying down lifting weights as they would probably fall off your head. 
I have tried a few other types of wireless workout headsets, but they all fall short of overall sound.  Plus, you get a lot of questions about those sportsbands.  Lol.