Wireless microphone receiver and 2 microphones 2 heasdsets 2 bobbypack 2 Lapel microphones high sensitivity 4 microphones suitable for large capacity use. High quality dynamic pickup is designed to limit feedback and interference. Make a clear, powerful and authentic voice Fixed frequency super signal stabilization design eliminates unnecessary distortion.The working frequency range of four channel wireless microphone group is 510 MHz ~ 590 MHz. Suitable for all kinds of outdoor activities, such as parties, weddings, speeches, conferences, small performances, karaoke,School The rack mounted metal receiver has 4 XLR outputs and a quarter inch audio output jack, which can be connected to amplifiers, mixers, stereo or other PA systems, automatically paired with the transmitter for easy insertion and installation.