Imperial DABMAN d15 Schnellstartanleitung Seite 22

DABMAN d15, this can optionally be used for audio
data playback. To do this, please follow these steps:
Using an appropriate cable (3.5mm jack, not included),
connect an external device to the DABMAN d15 and turn
this unit on.
Keep pressing the MODE button (11) on the unit until the
display shows AUX-IN.
E
Now you can play music from the external device. The control
(track forward, back, stop, play) is done via the externally
connected device, the playback volume can be controlled via
the volume control of the DABMAN d15 or via the external
device.