-- Mike Elgan

Mobile headset for noisy environments: theBoom v4

Have you ever tried to use your cell phone headset in a really noisy place like the streets of New York City, a busy airport or a meeting hall? While most headsets claim to have noise-canceling features, theBoom v4 ($150) is the first unit I've tried that really works. I tested it in front of my TV, turning up the sound so loud that no one sitting near me could hear what I said, yet the person on the other end received the message clearly.

The key to theBoom's success lies in the physical design of the microphone. Developed by UmeVoice, this technology ensures that only the sound going directly into the front of the microphone is taken as input, while all other noise is discarded.

TheBoom is a wired headset (for extra security) with a microphone that sits in front of your mouth and an earpiece that sits inside the ear. You can speak very quietly and still be heard, so eavesdroppers are less of a worry. If you really want to keep your conversation private, step into a loud bar and speak softly. The noise floor will mask your voice to those around you, but theBoom will ensure your caller hears every word.