As a safety instructor, there's nothing more important on a job in the real world than COMMUNICATION!!! Like the 3rd Indiana Jones movie..."Go in there, are you crazy?" "No, I said NOT to go in there!" (OK, paraphrased a bit) but in a noisy environment with a respirator and earplugs on, miscommunication can be deadly. Dräger makes a fullface mask with a built-in little microphone like the kids at McDonald's wear, with a little earpiece, and a little speaker on the outside, so you can talk to the people next to you and the OSC/IC back at the job trailer without using up one of your hands to hold the walkie-talkie and having to shout through the mask. The technology is there, people, it just boils down to the budget. Headphones like these are just ultimately cool, so I give 'em 5 stars, no matter who makes them.