Using high sensitivity and wire frequency response of moving-coil senior cartridge, no matter boy and girl can show the original soundMicrocomputer control of PLL phase- locked loop oscillation circuit, stable performance and easy setting.The LCD digital display mode, make the operation more intuitive. Receiver built-in transmitter power supply, power detection circuit can permanently solve the microphone transmitter power shortage of embarrassment.It has two set audio output balance and imbalance, and any mixer, power amplifier is connected.The precisions of circuit design, can meet normal use of poor weather conditions.