[. . . ] Be sure to observe the polarity markings which are engraved inside the battery compartment, then close the cover. Note : Do not mix different type of battery or old batteries with new ones. [. . . ] Note : Do not mix different type of battery or old batteries with new ones. Insert the AC adaptor's cable plug tip into the DC IN 6V Jack at the back of the unit, then insert the moulded plug (with blades) into the wall outlet. Note : Always Power off the unit before switching to AC adaptor supply. In the event of AC power cut/off, user needs to readjust the Time and Alarm. Press other buttons may also turn on the backlight plus activating their associated function. At any stage, if no key is pressed within the next 7 seconds (time out period), the last selected value is automatically saved. User MUST use the AC adaptor when playing iPod shuffle, otherwise the battery power will be drained away by the iPod. Always power off before inserting/removing the USB to/from the USB Port. The LCD displays "rEAd", then the first track "0001" is played automatically. Plug one end of the Line Cord into the AUX IN Socket of this unit and the other into the Headphone Jack of the iPod, Mp3 Player, Discman or other music source. Use the controls located on the external device to navigate, select, play the content and adjust the volume level. (Directive de l' équipement électronique et des déchets électriques) When powered by Battery alone and the batteries are running LOW, it may not be able to read the USB Drive. [. . . ] Use the controls located on the external device to navigate, select, play the content and adjust the volume level. (Directive de l' équipement électronique et des déchets électriques) When powered by Battery alone and the batteries are running LOW, it may not be able to read the USB Drive. [. . . ]