4Panel ControlsPower on/off: Press to turn on/off the unit.1. - Short press to select playing mode:• Radio• USB (when USB inserted)• SD (when SD/MMC inserted)• AV (front audio & video input. Externalperipheral devices can be connected withthe unit.)- Long press to return to main source menuwhen in any mode, then use navigatebutton to select the desired mode, andpress OK button to confirm.2. Cancel source select menu and return toprevious menu3. - Press to navigate up among option items(in MP3/WMA mode)- Play the previous preset radio station (inRadio mode)4. - Press to navigate down among optionitems (in MP3/WMA mode)- Play the next preset radio station (inRadio mode)5. - Power on/off (press and hold more than 2seconds)- Mute6. 3 inch TFT display7. SD card slot8. USB port9. - Rotate the knob to adjust volume level- Press to select audio/video Setting, androtate the knob to adjust level.- Press more than 2 seconds to Settingmenu.10. Panel open11. - Play/Pause (in MP3/WMA modes)- Band switch: FM1-FM2-FM3-MW1-MW2(in Radio mode)12. - Preset scan (press briefly, in Radio mode)- Auto preset (press more than 2 seconds,in Radio mode)- Stop (in MP3/WMA mode)13. - Search the previous station manually,and each press to seek step by step(press briefly, in Radio mode).- Search the previous station automatically(press more than 2 seconds, in Radiomode).- Press to search the previous track orchapter (in MP3/WMA mode).- Fast backward by 2, 4, 8, 20 step (pressmore than 2 seconds, in MP3/WMA mode).- Press to navigate left among option items14. - Search the next station manually, andeach press to seek step by step (pressbriefly, in Radio mode).- Search the next station automatically(press more than 2 seconds, in Radiomode).- Search the next track or chapter (in MP3 /WMA mode).- Fast forward by 2, 4, 8, 20 step (pressmore than 2 seconds,in MP3/WMA mode).- Press to navigate right among optionitems15. - Confirm operation- Stop auto seeking (in Radio mode).16. Remote sensor17. AV in