国产成本人片免费av-后入到高潮免费观看-亚洲av 国产精选免费视频_中文字幕亚洲欧美日韩在线不卡_高

Currently, mobile phones are not only tools for us to communicate with each other, but also smart devices that integrate entertainment and leisure. Especially as music playback devices, their use is more common. Bluetooth speakers on mobile phones are favored by more consumers as auxiliary devices for music playback. So, what if there is no sound when connecting the Bluetooth speaker on the phone?

1、 First, check if the Bluetooth speaker is successfully paired with the phone playing music. When we have two phones, it is possible that the Bluetooth speaker is connected to another phone instead of the phone playing music, which can also cause the Bluetooth speaker to play without any sound;

2、 Check the volume adjustment of the phone. The sound source of the Bluetooth speaker is the phone. If the volume of the phone is not turned on, the Bluetooth speaker cannot play music. Therefore, when there is no sound from the Bluetooth speaker, first check whether the phone has turned on the volume;

3、 Confirm the volume adjustment of the Bluetooth speaker on the phone. The volume of the Bluetooth speaker needs to be turned on to produce sound;

4、 It is necessary to confirm that the volume of the Bluetooth speaker on the phone is sufficient. When the volume of the Bluetooth speaker is insufficient, there may be a situation of silence or reduced sound;

Article source: LED Bluetooth audio system http://m.fushikangzhaopin.net/