Headphone Output Interface
The interface is a standard 3.5mm headphone jack.
TF Card Port
1. The port is only for the standard TF card(Micro SD) and supports a
capacity up to 512GB.
RESET Button
This button is for system reset. After pressing it, the system will reboot
automatically.
USB Port
2. Digital audio signal transmission
a. After booting up the device and entering the System interface,
select the "USB Mode" option and set to the "DAC" status.
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1. Data exchanging
a. After booting up the device and entering the System interface,
select the "USB Mode" option and set to the "USB" status.
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b. After connecting to a computer, user can start to manage songs
on the TF card.
2. Open the TF card cover, insert the TF card into the card slot in the
indicated direction and press it gently until it locks inside. Press again
to remove the card.
c. After disconnecting device from a computer, in the "System" select
"Update Music", select "Now" and confirm the update. After
update, the TF card's songs will appear in "My Music".