With a black anodized finish and a frequency response tailored for enhanced presence and improved voice quality, Sony's ECM55B Omni-Directional Electret Condenser Lavalier Microphone is well suited for a wide range of applications. The microphone features a two-way powering system, meaning it will operate on a AA-size battery or an external power supply. And the head of the mic weighs only 0.23 ounces.