Why can't the microphone be powered on?

The microphone cannot be powered on if the battery is too low. To resolve this, charge the microphone.

Why is there no human voice detected?

The microphone might have entered listening mode. To fix this, exit the listening mode.

Why can't the Bluetooth connect?

Bluetooth disconnections can happen if the cellphone is too far from the microphone, or there are too many records of Bluetooth connections. Delete the records of previous Bluetooth connections and bring the cellphone closer to the microphone.

Why is the accompaniment in low volume or mute?

The low volume could be due to the cellphone volume not being regulated or the volume of the source document being too low. Regulate the cellphone volume or download a high-volume version of the source for singing.

Why is charging slow?

Charging may be slow if the output current of the charger is below 1A. Replace the charger to ensure normal charging of the microphone.