iBasso Audio DX170 User Manual page 9

Coaxial Output Port:
Use a mini coaxial cable to play music stored in the DX170 on an
external device with a coaxial input port. Before using the coaxial
output, make sure SPDIF is selected on the 3.5 interface of the
drop-down notification bar.
USB C Port：
Connect the DX170 to a computer or a USB charger to charge
the DX170. Connect the DX170 to a computer to allow the DX170
to work as a card reader or an external storage.
Connect the DX170 to an OTG storage device to play music files.
Connect the DX170 to a PC or a Mac computer to work as a USB
DAC.
Line Out Port:
Use a 3.5 to 3.5 interconnect cable to play music stored in the
DX170 on an external amplifier with a line in port.
Phone Port:
Plug in the single-ended earphone and output sound through the
phone port.
Balanced Phone Port:
Plug in the 4.4mm balanced earphone and output sound through
the Balanced phone port.
Micro SD Card Slot:
Insert a Micro SD card into the DX170 to access its stored files.
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