First turn on the switch and try to see if there is electricity. Generally speaking, if there is electricity, there will be a prompt sound when the switch is turned on.

How to Use Bluetooth Audio

If there is no response, it may be necessary to charge. We found the audio line, which has three heads and has two different functions.

How to Use Bluetooth Audio

We plug the smaller trapezoidal connector into the audio, the other end of the USB connector into the computer, can be charged, if there is a power adapter can be plugged into the socket for charging, charging lights will flicker.

After charging, we can try to turn the switch on again and use it normally. First, experience Bluetooth. We can pair it with a mobile phone. Press the playback key on the stereo first and switch to Bluetooth mode according to the voice prompt.

Then turn on Bluetooth on the phone, find the audio device, and connect with it. The audio will also give us voice feedback when the connection is successful. Then we find a song or video on our mobile phone to play, and the sound will be emitted from the stereo. Computers with Bluetooth drivers can also try this method.

For desktop computers without Bluetooth, it is also possible to use Bluetooth audio. The method is simple: hold down the play key on the stereo for a long time and switch to the external mode according to the voice prompt.

Then connect the trapezoidal orifice of the three-wire with the Bluetooth audio and the needle-shaped headphone connector at the other end to the headphone interface of the computer. At this time, the sound played on the computer will be emitted from the Bluetooth stereo. This is equivalent to using Bluetooth stereo as a cable stereo.

Finally, if we want to play music with Bluetooth audio without any other tools, we can plug the expansion card into the Bluetooth audio. We can insert U disk or TF card into the corresponding interface of Bluetooth audio. If there are music files in it, the Bluetooth audio will play automatically.