Hello, Bluetooth speakers usually have two ways to charge:
1. USB charging: Use the USB charging cable that comes with the audio, connect one end to the charging port of the audio, and connect the other end to the power adapter or USB port of the computer. Then, plug the power adapter into a power outlet or turn the computer on, and the stereo will start charging.
2. Wireless charging: Some Bluetooth speakers support wireless charging and can be charged using a compatible wireless charger. Connect the wireless charger to a power outlet and place the speaker on the charger, making sure the charging port of the speaker is aligned with the charging area of the charger. The speaker will be charged via wireless charging technology.
No matter which charging method you use, make sure you use the appropriate charging cable and adapter and follow the instructions on your speaker's manual.