auna multimedia MD-120 Instructions Manual page 19

CH+
Under the radio mode, short press to choose the station number forwardly, long press to save the present
station. Under the music playing mode, short press to display the +10 songs. Long press is PAUSE/ PLAY.
AUX-In: Outer connection signal input.
LCD Display: Display the channel of radio or the playing information.
SD/MMC Card Slot: Insert the SD or MMC card, the system will play it accordingly
USB Slot: Insert the USB, the system will play it accordingly.
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