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Specification : 

Common issues:

1.Power Supply

Hello,this speaker with USB 5V supply voltage. Please speaker USB power supply connector into the
computer's USB port, on the recommendation into the back of the host computer's USB interface.

2.Received the goods, why not work?

Hello, this is the speaker there are two lines, one is audio cable, a USB cable is, you need to use
two wires at the same time.
Speaker with volume control,but there is no key to open, if you want to turn off,you can turn the
volume down to the minimum on it.

3.The sound quality is not good?

If you're using a desktop computer,we recommend inserted in the back of the main chassis USB interface