About this item FLEXIBLE CONNECTIVITY OPTIONS: The receiver has one 3.5mm (1/8) TRS and one optical input connector, one 3.5mm, 6.35mm (1/4) TRS and one optical output connector for easy setup with your home theater or speaker system. It supports both wireless and wired microphones, with separate volume controls for each channel. This system is compatible with a wide range of sound bars, home receivers and speakers such as Bose, Sonos and more INTERFERENCE-FREE: The wireless microphone system comes with Ultra-High Frequency (UHF, 550-590 MHz) which is less likely to get interference from other equipment compared with a VHF system. lt has 2 x 50 selectable frequencies and is compliant with the latest FCC regulations