This is very simple, first connect the power supply, and then plug it into the headphone jack. If the USB interface of the speaker without power supply is plugged in, it is best to connect the interface for connecting the USB flash drive to the interface at the back.
Aige S28 Wireless Bluetooth Speaker Subwoofer Portable Outdoor Super Volume Square Dance Computer Mobile Player.
In terms of brand strength and machine configuration, it is better than most so-called HIFI speakers on the market today. However, I have not tried it in person, so I can only give you some suggestions. .