Product Manual

No sound from horn
The device end does not select this machine as
the output source
Set the device end as the output source
The microphone cannot pick up
The device end does not select this machine as
the input source
Set the device end as the input source
Unable to power on
Low Battery
Connect the power adapter for charging
The horn cannot be muted
The speaker volume is adjusted to the minimum
mode
Briefly press the volume reduction key until 8 indicator lights are
off, and the horn enters the mute mode