8Front panel1. POWER/MUTE ButtonPress it to turn on the unit. Press and hold for 2 seconds to turn the unit off .Press the buttonbriefly to Mute .Please note that the volume will be muted on all audio output connector.2. MODE ButtonPress it to select the mode: Radio, DISC (if there is a disc in unit), USB (if there is a USBdevice in the unit), CARD (if there is a SD/MMC card in the unit), Bluetooth and AV IN.3. VOL Knob ButtonRotate VOL knob to adjust the volume level by turning the knob clockwise to increase orcounterclockwise to decrease.DUAL KEY setting: Press briefly it to switch C-DUAL and DUAL OFF.During C-DUAL mode, long press it switch C-DUAL and D-DUAL. Again press it briefly it toclose Dual operation. For detail, please see remote control dual describe.4. EJECT ButtonPress once to release the front panel, you can insert memory card in the card slot; press twiceto eject a disc. If the disc is not removed for about 10 seconds after eject, the disc is reinsertedautomatically.5. Mic (Microphone)During a telephone call you should speak in the direction of the built-in microphone.6. RESET ButtonPress it with a thin, sharp object. The device will then be reset to factory default settings.7. USB slotIf you would like to play back data contained on a USB stick, please insert the stick into theopening provided. A word USB Loading appears on the display. The data is played backautomatically.8. AV-in JackPut the AV plug into the AV-IN jack which was marked on front panel.