When MiC+ is plugged in and being used by an application as the microphone, the soft-key above the dial cycles through the 5 different monitoring blends.

When the left-most LED is illuminated white, this indicates full “direct’ monitoring signal. You’ll only hear what the microphone is picking up. No playback will be heard:

Continuing to press the soft-key again will cycle through the other four levels of blend. When the center LED is illuminated, you get a 50/50 equal blend of direct-monitor from the MiC+ signal, and playback:

The right-most LED illuminated white indicates full playback/software monitoring. No direct signal would be heard: