Inquiry 1: The sound will be interrupted after 3 weeks, and the sound will not be turned on with the sound.
Cause: Bluetooth may not be connected or unconnected.
Tips: Try the Bluetooth connection again.
Inquiry 2: Since it was written on USB enabled, I connected the iPhone with a cord to play music, but it could only use USB memory.
Cause: Music cannot be played by USB cord.Choose between 3 modes of Bluetooth mode, U-disk, TF card mode.
Note: Please read the product description and instruction manual carefully before using this product.
Inquiry 3: Does not work / Power off after 10 minutes and cannot be used.
Cause: It may not be used due to a bad contact.
Countermeasures: In case of a bad contact, you can improve the product by inserting and removing the device and the main unit.