Precautions<br>1. It is strictly forbidden to insert the external amplifier port directly with the machine signal input<br>2. Please listen to the music at the appropriate volume so as not to damage your hearing and speaker system<br>3. Long-term not applicable or long-term outing please unplug the USB<br>4, avoid exposure to sun, rain, water droplets, avoid long-term exposure to high temperature, humid environment<br>5. The device should not be subject to water droplets or splashes, and items filled with liquids such as vases should not be placed on the device<br>6, the speaker is preferably more than 15CM away from the display
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