This 4-channel mixer with amplifier suits a number of different applications, like Live PA, DJ, musicians, bands and other PA purposes. Each input channel has separate bass and treble control as well as an individual level control per channel. The built-in echo effect generator has adjustable time and repeat options and the level can be set for each channel individually. The unit is built in a strong and sturdy case that will protect the mixer both on-stage and during transport. 4 Balanced microphone inputs 3 Unbalanced line inputs (6.3mm Jack) 1 Stereo line input (RCA) AUX input to connect any music player Echo effect generator Bass and treble control for each channel RCA Tape in/out 3-Band equalizer Built-in 800W Amplifier Built-in MP3 player with digital display BT-receiver for audio streaming