Item
Visual Indication
Audio Indication
Charge
Charging
Lighting in Red (LED)
None
Fully charged
Lighting in Blue (LED)
None
Battery low
(in Standby mode )
Flash Red (LED) When
battery voltage is 3.5V or
above, LED blinking normally.
Below 3.3V, LED show
“
Battery Low
”
indication.
And auto power off as below
3.0V
Battery low
power On
The Blue light 2 seconds
Power on
power Off
The Red light 2 seconds and
then Off
Power off
Pairing
Blinking in Blue and Red
alternatively (LED) (last for 4-
5 minutes) (0.8 sec. Red/ 0.8
sec. Blue)
Ready to pair
Paired Successfully
The blue light flashes slowly
twice every 3 seconds
Connected
Disconnect
The blue light flashes twice
every 2 seconds
Disconnected
Incoming telegram
Blue light flashes once per
second
Electronic sound prompt
One the line
Blue light flashes 2 times in 2
seconds
End of the call
Blue light flashes 2 times
Reset
Red and blue lights are on at
the same time for 1 second
DiDi reminding
Auto power off
Pairing unsuccessful (about 5
minutes) auto power off
Power off reminding
，
Power
off
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which
