Fender Passport PD-250 Plus Portable Sound System Built-In CD-Player Docking Connector for Passport Wireless Receiver Six Channel Mixer (4 Mic/Line, 1 Stereo, 1 CD-Player) Microphone Channels 1-4 Controls; Level, Low, High, Rev/Aux, Pan Stereo Channel 5 Controls; Level, Low, High, Rev/Aux, Balance