There is a case that I don't move by USB bus power.

This unit runs on USB power without any problem in an operating environment recommended (guaranteed) by Pioneer. However, when this unit is used in the following ways, the load on the headphones and the consumption current increase so the unit may not run on USB power depending on the USB power supply capacity of the connected PC.
-When headphones or earphones with an impedance of less than 32 Ω are connected (such as those with an impedance of 8 Ω or 16 Ω)
-When a monaural jack is connected to the headphones jack