Drawmer 4X4 KickBox, Mic / Line Splitter, 4 In / 16 Out, 4 Studio Grade Mic / Line Preamps, 48V switchable, Headphone output per input switchable, For each channel 4 outputs (also 1 In / 16 Out or 1 In / 12 Out + 1 in / 4 Out or 2 In / 8 Out or 4 In / 4 Out each), LED chain per input, Built in the PVC road case, Output transmitter optional!