Charging
When charging the headphones, be sure to use a USB to AC adapter with DC 5 V power output to avoid malfunction or abnormal heat generation.
Use only the supplied charging cable to charge the System.
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1Using the supplied charging cable, connect the System and a commercially available USB conversion adapter.
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The indicator lights up in red, and charging starts. When charging is complete, the indicator goes out.
The charging time is about 3 hours.
The System cannot be operated during charging.
If the indicator flashes in red repeatedly, the temperature protection function is in operation and the System cannot be charged. In that case, perform charging within the usage temperature range (5 °C (41 °F) to 40 °C (104 °F)).