The Silent Microphone III is the SM2 with three improvements:
HEAD STRAPS - Keep the original head straps on the mask so you don't have to use your hands to hold the SM3 while using it.
FRONT MICROPHONE - A high-quality microphone (Shure Beta58a placed at the front) for higher-quality recordings.
INHALE VALVE - One-direction air valve to have fresh air in one of the tubes. One tube with inhale-only and one tube open seemed to work better than having the open tube as exhale only.
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| Back View |
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| Here is the mic grill from the back view. |
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| Shure Beta 58a microphone. The ball grill is inside the plaster, allowing the mic to screw on and off. |
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| Here is the one-way inhale valve at the end of one of the tubes. |
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| The SM3 is very front heavy. Use a large dry sponge as a brace between the bottom of the mic and the upper chest. |
