Roland GO:MIXER PX Compact Audio Mixer For SmartphonesPalm sized audio mixer for mobile devices Multiple inputsconnect microphones, musical instruments, and more Combo jack supports standard mics with XLR or inch plugs; 48 V phantom power available via XLR Dedicated guitar bass input with selectable input pad for active pickups Mono stereo instrument input Two stereo line level inputs with TRS mini jacks Mini headphones jack with headset mic support Loop Back function for playing along with backing