Charging
When using a commercially available USB conversion AC adapter, make sure to choose one with an output voltage of DC 5 V and output current of 1 A and above. Otherwise, it may result in malfunction or abnormal heating.
Use only the supplied charging cable for charging.
Do not use this System while charging is in progress as the rechargeable battery may become hot.
Connect the charging cable provided to start charging.
Using the supplied charging cable, connect this System and a commercially available USB conversion adapter.
Insert the USB AC adapter into the AC outlet to start charging.
5V TYPE
During charging, the indicator lights up.
The charging time is approx. 3 hours. When charging is complete, the indicator goes out.
The System cannot be used while charging.
Charging may stop if the temperature exceeds the charging temperature range (5 °C (41 °F) to 40 °C (104 °F)). (The indicator flashes twice quickly and repeatedly). In that case, perform charging within the charging temperature range.
Depending on the BLUETOOTH device connected, the remaining battery power of the System will be displayed but this may not be accurate. Use it as a guide.
To prevent deterioration of the battery, charge the headphone once every 6 months when the headphone has not been used for a long period of time.