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LED Indicator Instructions
Operation/State
LED indicator status operating method/result
Power on
blue light glittering
press the power key for 5s
Linking mode
red and blue light glittering in turn
hold the power key for 7s
Turning off
red light on and extinguish
press the power key for 4s
Charging indicator
red light on
red light on
Charged
red light extinguish
red light extinguish
Connection
red light glittering
glittering every 5s
No connection
5s glittering
glittering every 0.5s
Call
blue light glittering
press the power key to receive
Busy
blue light glittering
glittering every 5s
FIRST USE
The BoomBoom 540 has a built-in rechargeable battery.
We recommend completely charging the battery before using the
device for the first time. Connect the supplied USB cable to the
BoomBoom 540 and a PC, Mac or USB power adapter. The red LED
will light up.
The device may take up to 4 hours to charge for the first time. Once
the BoomBoom 540 battery is completely charged, the red LED will
switch off.
WEARING STYLE
Watch the left and right indications on the
outside of the headband. When wearing the
BoomBoom 540, please make sure the Power
button is always on the right hand side.
BOOMBOOM 540
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