Features: ● Electret Condenser Cardioid Unidirectional Microphone ● Built-in microphone capsule pre-power supply and amplifier components, requires external DC 11V to 52V phantom power to operate ● Designed for high-quality sound capture in applications such as enhanced recording, conferences, TV broadcasting, and professional audio production ● The microphone rod and base feature a 4-pin aviation plug structure with a self-locking nut, ensuring stability and preventing loosening during shaking or vibration ● Simple and quick installation method; the microphone base output is a standard 3-pin XLR male connector (XLRM), compatible with any audio preamplifier designed for a 3-pin XLR female connector (XLRF) ● Low-impedance balanced audio output; the audio signal is transmitted through pins 2 and 3 of the XLR male output (pin 2 for positive-phase level, pin 3 for negative-phase level), while pin 1 serves as the ground (shield) connection ● Anti-mobile phone interference