User Manual

5
Charging the battery
• Fully charge the battery when using it for the first time.
• When the rechargeable battery is running low, you will hear a beep from the connected headphones, and an indicator
lamp will flash in red. When you hear this beep, charge the battery.
• It takes about 3 hours to charge the battery fully. (This time may vary depending on usage conditions.)
• While the battery is charging, the product's Bluetooth connection remains disabled and therefore the product cannot
be used.
1. Connect the included USB charging cable (micro USB Type B side) to the battery jack.
• The included USB charging cable is designed for exclusive use with the product. Do not use other cables to charge
the product.
• When inserting the USB charging cable into the USB port or battery jack, check that the jack is facing in the correct
direction before inserting it directly (horizontally).
Battery jack
USB Type A
USB charging cable
(included)
Micro USB Type B
Computer
USB port
2. Connect the included USB charging cable (USB Type A side) to the computer to start charging.
• While the product is charging, three indicator lamps light up as shown in the following table. The indicator lamps
show the battery level.
Battery (charging) status
Indicator lamps Red White Off
Indicator lamp
Lamp
display
Pattern
Less than 30%
remaining
Flashing
30 to 60% remaining
Bottom lamp solidly lit, middle lamp
flashing
60 to 100% remaining
Bottom and middle lamps solidly lit,
top lamp flashing
Charging complete
Off
Charging error
Quick flashing
3. When charging is complete, disconnect the USB charging cable (USB Type A side) from the computer.
4. Disconnect the USB charging cable (Micro USB Type B side) from the battery jack.