I work in a noisy carpentry/cabinetry shop, and we are now moving into a much larger building. We will be constantly communicating with our main design/engineer guy (I'm in the fabrication/finishing part). I see a big need here for a two-way radio. Currently, in our smaller facility, all we have to do is yell "Hey Bo, ___________". In the larger facility, that's not going to happen. Too much distance, noisy machines, and walls between us and him. I NEVER hear my mobile phone ring, even with custom made photon-torpedo sound alerts that I've customized so loud that I'm shocked that my speakers haven't killed over yet. I'm hoping someone here, most of us being widget geeks, can suggest a 2-way radio that has a very loud, shrill alert sound. The sort that makes dead folks wet their pants. Any suggestions? I know nothing about 2-way radios, and really need some direction here.