Using built-in low-pass filter circuit design, completely filter out the interference of external audio equipment . The isolation boost technology is used to effectively prevent ground signal interference. . two sets of balance The power supply is used to balance the input and output signals to stabilize the voltage balance, Prevent common mode interference. Using a new USB-5V boost circuit to solve the mismatch problem with the human body Power, voltage and transformer issues in different regions. Provides reliable 48V phantom power Condenser microphone and transmit audio signal to your sound card in compact, sturdy plastic shell. Enjoy ultra-low noise and full frequency response. High quality XLR audio cable Includes male and female XLR connectors. High-quality components and robust construction ensure This power supply can withstand testing and performance under all conditions. common XLR input and output, compatible with a variety of music Recording equipment with microphone.