**********Ultra-high frequency 4-channel wireless microphone receiver with a frequency range of 510-590MHz, provides 100 frequency points, and four professional antennas with high frequency stability and accuracy. The DPLL digital phase-locked loop multi-channel frequency synthesis technology has small interference, more reliable transmission, convenient use of multiple machines at the same time, and advanced automatic frequency technology against various interferences to ensure the best sounsound quality*****It will automatically chase the receiving frequency and adjust the frequency, even the chaos of the transmitter and receiver frequency, upgraded transmission technology, better sound quality improvement, Individual volume controls to adjust sound output as desired, any outdoor activities such as parties, weddings and speeches are not a problem at all, easy to use*****Dedicated transmitter and receiver can be set to lock function to prevent misoperation; use receiver sensitivity adju