Marshall MXL MM-4000 MiniMixer+ 4-Channel Portable Audio Mixer
- Turns all four inputs into mono-out for computer, DSLR or mobile device.
- record to mobile device and monitor audio from same jack.
- Headphone jack for direct audio monitoring.
- USB in & out for audio playback and recording.
- Works with all TRRS mics, including the full line of MXL Mobile Media mics.