The world's best noise cancelling headsets.  New Circular Microphone Included. For cell phone and PC only, will not work with land line phones.

• *Freedom to communicate anywhere!
• Even in the noisiest environment, theBoom O's patented noise cancelling technology delivers clear speech. You can have that important conversation no matter where you are.
• - Cars / Convertibles
• - Office space
• - Construction sites
• - Home/Home Office
• - Call centers
• - Airports
• - Commuting
• - Mobile professionals
• - Speech recognition
• *Privacy even in a crowd!
• With theBoom "O", you will be heard loud and clear even at a whisper. Since there's no need to speak over surrounding noise, you can keep your conversations private and avoid disturbing people around you.

-mobile phone
        -in public transportation (trains and buses)
        -in the ball park, race track, concert
        -in the office or home
-landline phone in the office / home
       -cordless phones
       -using 2.5mm headset jack
       -using plantronics amplifier
       -using headset/handset switch
-computer
       -use with your favorite voice recognition software for dictation
       -communicate using Voip
       -listen to music from a cd or mp3 player(mono)