Why you need the Rolls RM69 MixMate 3 Mic/Source Mixer: The Rolls RM69 MixMate 3 Mic/Source Mixer is six channel, single rack space, electronic audio mixer with two microphone inputs and four stereo line inputs. The unit is ideal for installs such as small restaurants or night clubs where space is a consideration, without compromising audio quality. A convenient front-panel 3.5mm jack has been included for connection to any standard MP3 player's headphone output. • Two XLR Microphone Inputs (including a paralleled front panel input) • Individually switchable phantom power • Four Stereo Source Inputs, Four RCA and one front panel stereo 3.5 mm • 1/4" TRS Mic Insert jack - Stereo RCA and XLR Outputs • Headphone output on front panel with volume control