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Let’s Get Started
LED
LED colour/pattern
Status description
Lighting (red)
Charging is in progress
Blinking alternately red and blue
Standing by for Bluetooth® pairing (registration)
Blinking slowly (blue)*1
Standing by for a Bluetooth® connection
Blinking blue twice every two seconds*1
Bluetooth® pairing (registration) has been established, or a call is in
progress
Blinking (blue)*1
A call is being received
*1
The battery is low when it is blinking red. (Page 9)
Charging
The built-in rechargeable battery is not charged initially. Charge the battery before using the unit.
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: USB charging cord (supplied)
: Power source (e.g., PC)
8: LED
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Use the USB charging cord (supplied) to connect the unit to a 5.0 V power source (0.5 A or higher).
R Check the direction of the USB charging cord and plug the cable straight in. If you plug the cord in at an angle
or the wrong way up, the connectors may be damaged resulting in a malfunction.
R The LED lights up (red), and charging starts.
R Charging is complete when the LED turns off.
R It takes approx. 4.0 hours to charge the battery from empty to full.
Note:
R You cannot use the Bluetooth® feature when the unit is connected to a computer using the USB charging cord.
R Charge at a room temperature between 10 °C and 35 °C. Outside of this temperature range, charging may stop
and the LED may blink red.
R You cannot turn on the power while charging.
R Do not use any other USB charging cords except the supplied one. Doing so may cause a malfunction.
R Charging may not occur or may stop if the computer is in standby mode, sleep mode, or switches to one of these
modes.
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