Mifa A90 Manuel D'utilisation page 5

Speaker doesn't work
XI.Functional Operations and Features
1.LED Screen.
2.Master Volume: In USB/TF Card/AUX in/Bluetooth mode, use it to regulate volume output from
the speaker.
3.TF Port: Read audio files in MP3 format in TF card in capacity up to 32G (FAT32).
Cause 1: The speaker may have run out of power
Cause 2: Bluetooth is not connected
Cause 3: The volume of the speaker may not be turned on, or the
volume of the mobile phone may not be turned on
Solution: Please turn on the speaker again after fully charging ,
reconnect Bluetooth, increase the volume of the speaker and the phone .