Operation Manual

Play/Pause
LCD
Touchscreen
Home key
Volume
microSD
card slot
Next/Fast
Forward
Previous/
Rewind
Earphones / Optical port : Output sound to connected
earphones. Music can be played back on an SPDIF-
capable external device by using an optical cable.
Power : Turn the screen on and off.
Long Press - Turn the device on and off.
Balanced port : Output sound to earphones or headphones
that support balanced audio connections. Connect to
an external audio device by using both the earphone port
(ground) and balanced audio port (LR) in conjunction.
Micro-USB port : Connect to a computer or recharge the device.
Previous/Rewind : Play the previous song or restart the song.
Long press - Rewind.
Start 03
User Guide
The appearance of the product, printed and engraved
information may vary depending on the model.
AK20 at a
Glance
Earphones / Optical Port
Power
Micro-USB port
Balanced audio pin map
R- R+ L+ L-
Balanced
audio port