User Manual
9
Charging the battery
Charging headphones without the charging cable
A rechargeable battery is built into the charging case. If you have charged the charging case, you can charge the 
headphones without using the USB charging cable.
• If the rechargeable battery power is running low, the product will beep through the headphones, and the indicator 
lamps of the headphones will flash in red.
1.  Place the headphones in the charging case.
• When charging, the indicator lamps of the headphones 
light as follows (it may take several seconds for the 
indicator lamps to light).  
Lit in white : Charging  
Off: Charging complete
2.  Close the charging case cover.
Checking the battery level of the charging case
1.  When opening/closing the cover of the charging case, the 3 charging indicator lamps light as follows to indicate the 
battery level of the charging case.
Battery (charging) 
status of the 
charging case
Charging indicator lamps 
 White   Off
Lamp display Light pattern
Only left lamp lit
Left and center 
lamps lit
All lamps lit
(Charging required)
Only left lamp 
flashing quickly  
(twice in a row)
Indicator lamps










