How does a wired stereo become a Bluetooth speaker connected to a mobile phone?

Wired audio can be turned into a Bluetooth speaker through a Bluetooth audio receiver. You can use Xiaomi's Bluetooth audio receiver. Bluetooth audio receiver is attached with 3.5mm audio cable, which can be connected with 3.5 mm AUX interface, which is very effective for most stereos. If you connect a cable speaker with RCA double lotus interface, you can also choose a Bluetooth audio receiver equipped with this port.

The connection between the mobile phone and the receiver is the same as the ordinary Bluetooth connection, and the method is as follows:

First, open the settings option of the mobile phone interface and select Bluetooth.

Second, turn on the button behind Bluetooth, as shown in the figure.

3. Press the Bluetooth logo on the Bluetooth speaker at this time, and the indicator light will light up.

Fourth, at this time, the mobile phone will automatically identify nearby Bluetooth devices.

5. Click on the newly identified, or wait for the automatic connection.

6. Turn on the music player and you can play the music in the mailbox.