Very simple, sturdy design. I have tried a few headsets and this one is easy to put on, stays put, and sounds great. A couple of times when flipping open the boom to turn on, the unit will connect and then disconnect and will keep doing this until I leave a certain area. Not sure if there are some things that cause interference but not a major issue. Much easier to put on and use than the newer jawbone 2.....also easier to put in a pocket.....not as fragile.