This is one of the smallest microphones with built in amplifier. The mike features low noise, extremely high gain and auto level adjustment by on board IC. This mike 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 mike is configured with six-foot mike lead and plug and play termination cable with RCA connector. Includes: 12 Volt DC power supply, 25 feet RCA video cable for easy connection to TV or VCR.