Condensor Microphone 10mm mic Inserts offer high quality sound output.
ECM (electret condenser microphones) operate on battery voltage typically 6V to 15Vdc and draw about 1mA current.
Condenser microphones require power from a battery or external source. The resulting audio signal is stronger than that from a dynamic. Condensers also tend to be more sensitive and responsive than dynamics, making them well-suited to capturing subtle nuances in a sound.
Never underestimate the little guy...............