Product Detail Close-talk microphone operation and unidirectional polar pattern for effective noise reduction Smooth, natural microphone voice frequency response Microphone can be worn on right or left side, boom pivots through 155 degrees Microphone boom length adjusts through 89 mm (31/2 in) range High sensitivity enclosed ear receivers block out room noise, enhance clarity of reception . The "Shure SM2 Headworn Microphone" is best product for you. We recommended Shure SM2 Headworn Microphone