This is one of the smallest microphones with built-in amplifier. The microphone features low noise, extremely high gain and auto level adjustment by on board IC. This microphone is super tiny and the preamp is built-in. It is very light in weight about 1/2 once. It requires 6-15 volts DC power supply, which is included with the microphone. The micrphone is configured with a six-foot microphone lead and plug and play termination cable with RCA connector.